exam 2 study guide

Created by regina martin

p.14

What is the significance of the trachea in relation to the heart?

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p.14

It bifurcates and is located near the heart structures.

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p.14
Heart Anatomy and Clinical Significance

What is the significance of the trachea in relation to the heart?

It bifurcates and is located near the heart structures.

p.2
Cervical Vertebrae Anatomy

What do the superior articular facets of the Atlas receive?

The occipital condyles.

p.5
Muscles of the Back and Their Functions

What is the innervation of the rhomboid major and minor muscles?

Both are innervated by the dorsal scapular nerve C4-C5.

p.11
Clinical Significance of Rib Fractures

What are the clinical signs of pericarditis?

Severe pain and a friction rub.

p.10
Cervical Vertebrae Anatomy

How does the right main bronchus compare to the left main bronchus?

The right main bronchus is shorter (2.5 cm), wider, and more vertical, while the left main bronchus is longer (5 cm) and less steep.

p.4
Sacrum and Coccyx Structure

What is the coccyx commonly known as?

The tailbone.

p.4
Sacrum and Coccyx Structure

What is coccydynia?

Pain in the coccyx.

p.2
Cervical Vertebrae Anatomy

What movement does the Atlanto-occipital joint allow?

Flexion and extension of the neck, such as nodding the head 'yes'.

p.5
Muscles of the Back and Their Functions

Which muscles are included in the erector spinae?

Spinalis, Longissimus, Iliocostalis.

p.8
Clinical Significance of Rib Fractures

What is a potential complication of a mastectomy?

Damage to the thoracic nerve, which can cause winged scapula.

p.11
Heart Anatomy and Clinical Significance

What is the function of the coronary arteries?

They are functional end arteries supplying blood to the heart muscle.

p.11
Heart Anatomy and Clinical Significance

What are the major coronary veins?

Great cardiac vein, middle cardiac vein, small cardiac vein, posterior vein of the left ventricle, and left marginal vein.

p.8
Cervical Vertebrae Anatomy

What structures are important in the internal anatomy of the breast?

Retromammary space and suspensory ligaments.

p.8
Clinical Significance of Rib Fractures

What is a clinical sign of breast cancer?

Dimpling and thickening of the skin, resembling an orange peel.

p.11
Heart Anatomy and Clinical Significance

What does the left coronary artery supply?

The left atrium, left surface, and left ventricle through its branches: anterior ventricular and circumflex branch.

p.10
Cervical Vertebrae Anatomy

Describe the process of gas exchange in the lungs.

Blood goes into the respiratory bronchus, CO2 gets into alveoli, and O2 is put back into the blood, which flows to the heart.

p.10
Cervical Vertebrae Anatomy

What are the layers of the pericardium?

Fibrous pericardium and serous pericardium (which includes parietal and visceral layers).

p.10
Cervical Vertebrae Anatomy

What are the layers of the heart wall?

Epicardium, myocardium, and endocardium.

p.7
Clinical Significance of Rib Fractures

What is the clinical significance of fractures in the 1st rib?

Rarely fractured, but can pose a danger to blood vessels.

p.7
Heart Anatomy and Clinical Significance

What are the parts of the sternum?

Manubrium, Body, and Xiphoid process.

p.7
Vertebrae Characteristics

Which ribs articulate only with their own vertebrae?

The head of the 1st, 11th, and 12th ribs articulate only with their own vertebrae (single facet).

p.9
Clinical Significance of Rib Fractures

What is hemothorax?

Blood in the pleural cavity due to injury to the right subclavian vein during catheterization.

p.14
Heart Anatomy and Clinical Significance

What are the five layers of structures related to the heart?

Thymus, great veins, arch of aorta, trachea, and esophagus.

p.5
Muscles of the Back and Their Functions

What is the function of the rhomboid major and minor muscles?

Press scapula against the thoracic wall and medial retraction of scapula.

p.13
Clinical Significance of Rib Fractures

What is the clinical significance of rheumatic fever?

It causes acute inflammation due to complications from chronic tonsillitis or pharyngitis caused by streptococcus infection.

p.13
Clinical Significance of Rib Fractures

What condition may result from rheumatic fever affecting the heart?

Mitral stenosis.

p.14
Heart Anatomy and Clinical Significance

What type of nerves are associated with the cardiac plexus?

Sympathetic and parasympathetic nerves.

p.5
Muscles of the Back and Their Functions

What is the main function of the levator scapula muscle?

Elevates scapula.

p.5
Muscles of the Back and Their Functions

Where does the rhomboid major muscle originate?

T1-T4 and medial margin of scapula.

p.8
Clinical Significance of Rib Fractures

What are the types of pleural effusion?

Hydrothorax, pyothorax, chylothorax, and hemothorax.

p.1
Curvatures of the Spine

What are the primary curvatures of the spine?

Sacral and thoracic curvatures.

p.2
Cervical Vertebrae Anatomy

What does the Atlanto-Axial articulation consist of?

Median and lateral atlanto-axial articulations.

p.8
Cervical Vertebrae Anatomy

What is the function of the breast?

Lactation.

p.8
Clinical Significance of Rib Fractures

What is gynecomastia?

Overdevelopment of breast tissue in men or boys, often associated with Klinefelter syndrome.

p.13
Clinical Significance of Rib Fractures

How do nodules on the heart valves affect blood flow?

They cause irregular blood flow and valvular incompetence, leading to blood regurgitation and murmurs.

p.11
Heart Anatomy and Clinical Significance

What is the main venous drainage of the heart?

The main coronary veins drain into the coronary sinus.

p.11
Heart Anatomy and Clinical Significance

What are Thebesian veins?

Smallest cardiac veins that begin in the myocardium and open directly into heart chambers, mainly atria.

p.6
Muscles of the Back and Their Functions

What muscles form the boundaries of the suboccipital triangle?

Obliquus capitis superior, Obliquus capitis inferior, and Rectus capitis posterior muscles.

p.1
Clinical Significance of Spinal Curvatures

What causes kyphosis?

Loss of muscle tonicity.

p.9
Cervical Vertebrae Anatomy

Where does the trachea extend from and to?

From C6 to T4.

p.2
Cervical Vertebrae Anatomy

What is the Atlanto-occipital articulation?

The joint between the superior articular facet of the Atlas and the Occipital condyles.

p.5
Muscles of the Back and Their Functions

What are the primary functions of the latissimus dorsi?

Coughing muscle, adduction and lowering of the arm, medial rotation and extension of arm, raises body towards arm while climbing.

p.8
Cervical Vertebrae Anatomy

What does progesterone influence in breast development?

Development of milk-secreting lobules.

p.11
Heart Anatomy and Clinical Significance

What does the right coronary artery supply?

The right atrium and both ventricles through the right marginal artery and posterior interventricular artery.

p.10
Cervical Vertebrae Anatomy

What does each bronchopulmonary segment contain?

A segmental bronchus, a branch of the pulmonary artery, and a branch of the bronchial artery.

p.13
Heart Anatomy and Clinical Significance

What is the function of the Bundle of His?

It conducts impulses through the interventricular septum to the base of the papillary muscles.

p.13
Heart Anatomy and Clinical Significance

What structures are found in the supracardiac mediastinum?

The answer is not provided in the text.

p.4
Clinical Significance of Spinal Curvatures

What is a Hangman Fracture?

A fracture of the cervical vertebrae axis, causing displacement and pressure on the brain stem.

p.1
Clinical Significance of Spinal Curvatures

What is lordosis?

An anterior curvature of the lumbar spine, also known as 'swayback'.

p.8
Cervical Vertebrae Anatomy

What does estrogen influence in breast development?

Growth of tubular tissue.

p.13
Clinical Significance of Rib Fractures

What are the main symptoms of rheumatic fever?

Arthritis, chorea, skin involvement (erythema), subcutaneous nodules, and carditis.

p.4
Sacrum and Coccyx Structure

Where is the center of gravity located in relation to the sacral promontory?

1 cm posterior to the sacral promontory.

p.4
Sacrum and Coccyx Structure

How many fused vertebrae form the coccyx?

3–5 fused vertebrae.

p.4
Vertebrae Characteristics

What are the contents of the vertebral foramen?

Spinal cord, meninges, fat, vessels, CSF, spinal nerve rootlets/root.

p.6
Vertebrae Characteristics

At what vertebral level does the spinal cord end?

At the L1-L2 level (conus medullaris).

p.4
Intervertebral Discs and Herniation

What is the most common site of herniation?

Posterolaterally in the intervertebral disc.

p.6
Clinical Significance of Spinal Curvatures

How can folic acid affect the risk of spina bifida?

Folic acid supplementation during conception and pregnancy decreases the risk but does not prevent it.

p.7
Muscles of the Back and Their Functions

Which muscles elevate the thoracic cage?

Scalene muscles, Pectoralis major and minor, Sternocleidomastoid, and Intercostal muscles.

p.9
Clinical Significance of Rib Fractures

Where is thoracentesis performed?

Posterior to the midaxillary line while the patient is seated.

p.3
Thoracic and Lumbar Vertebrae Features

How many thoracic vertebrae are there?

10 thoracic vertebrae.

p.2
Characteristics of Vertebrae Types

What type of joint is the atlanto-occipital articulation?
A) A hinge joint
B) A ball-and-socket joint
C) A pivot joint
D) A synovial joint
E) A fibrous joint

D) A synovial joint
Explanation: The atlanto-occipital articulation is classified as a synovial joint, allowing for movement between the superior articular facet of the atlas and the occipital condyles, facilitating head nodding.

p.10
Characteristics of Vertebrae Types

How many bronchopulmonary segments are present in each lung?
A) 5
B) 8
C) 10
D) 12
E) 15

C) 10
Explanation: Each lung contains 10 bronchopulmonary segments, which are important for the organization of the lung's structure and function.

p.8
Breast Anatomy and Clinical Significance

What is the primary function of the breast?
A) Hormone production
B) Lactation
C) Respiration
D) Digestion
E) Circulation

B) Lactation
Explanation: The primary function of the breast is lactation, which involves the production and secretion of milk for feeding infants.

p.14
Heart Anatomy and Clinical Significance

What does the arch of aorta include?

Its branches and the vagus nerves.

p.14
Heart Anatomy and Clinical Significance

What current nerves are associated with the esophagus?

The laryngeal nerves.

p.2
Cervical Vertebrae Anatomy

What is C2 known as?

The axis.

p.5
Muscles of the Back and Their Functions

Where does the rhomboid minor muscle originate?

C6-C7 and medial margin of scapula.

p.10
Cervical Vertebrae Anatomy

What do lobar bronchi divide into?

Segmental bronchi (tertiary bronchus).

p.13
Heart Anatomy and Clinical Significance

What is the role of the sinus node in the heart?

It acts as the pacemaker, generating impulses at a frequency of 70/min.

p.10
Cervical Vertebrae Anatomy

What is the pathway of pulmonary circulation?

Deoxygenated blood from the right ventricle goes into the pulmonary trunk and arteries to the lungs, where it is oxygenated and returns to the left atrium via two pulmonary veins.

p.10
Cervical Vertebrae Anatomy

What is the function of the pericardial cavity?

It protects the heart against sudden overfilling and contains pericardial fluid.

p.1
Clinical Significance of Spinal Curvatures

What is kyphosis?

A posterior curvature of the thoracic spine, part of the aging process.

p.6
Clinical Significance of Spinal Curvatures

What is the purpose of administering epidural anesthesia?

To anesthetize somatic nerves while preventing loss of movement or muscle contraction, primarily during natural birth.

p.1
Vertebrae Characteristics

What are the characteristics of cervical vertebrae?

Smallest and lightest, short bifid spinous processes, large triangular vertebral foramen, and transverse processes contain transverse foramina.

p.7
Clinical Significance of Rib Fractures

Where are the intercostal vessels and nerves located?

They are located in the intercostal spaces, with anterior and posterior branches.

p.9
Clinical Significance of Rib Fractures

What should be determined before performing thoracentesis?

The fluid level by percussion.

p.3
Clinical Significance of Spinal Curvatures

What is a Hangman Fracture?

A fracture in the arch of the axis that pushes the dens posteriorly, compressing the brain stem and potentially leading to death.

p.14
Heart Anatomy and Clinical Significance

What structures are included in the great veins related to the heart?

Phrenic nerves, thoracic duct, and lymphatic trunks.

p.2
Cervical Vertebrae Anatomy

What is unique about C1 (Atlas)?

It lacks a body and spinous process and supports the skull.

p.5
Muscles of the Back and Their Functions

What is the function of the trapezius muscle?

Elevation, retraction and rotation of scapula, adduction and slight elevation of arm.

p.8
Cervical Vertebrae Anatomy

What hormones are responsible for breast growth?

Estrogen and progesterone.

p.11
Clinical Significance of Rib Fractures

What is cardiac tamponade?

A type of pericardial effusion where fluid builds up around the heart, preventing proper heart function.

p.10
Cervical Vertebrae Anatomy

How many bronchopulmonary segments are there on each side?

p.1
Curvatures of the Spine

When are primary curvatures present?

At birth.

p.1
Curvatures of the Spine

At what age do secondary curvatures develop?

When we begin to walk.

p.1
Clinical Significance of Spinal Curvatures

How can scoliosis be treated?

With a spine brace or surgery if caught at a young age.

p.4
Intervertebral Discs and Herniation

What does it mean for a disc to herniate?

The disc bulges out, mostly posterolaterally where the Annulus Fibrosus is thinner.

p.1
Vertebrae Characteristics

How many cervical vertebrae are there?

7 cervical vertebrae.

p.7
Clinical Significance of Rib Fractures

What are false ribs?

The last 5 ribs that share cartilage from rib 7 to connect to the sternum.

p.9
Clinical Significance of Spinal Curvatures

When does pain occur in pleuritis?

Only if the parietal pleura is involved, not the visceral layer.

p.14
Characteristics of Vertebrae Types

Which structure is responsible for carrying lymphatic fluid?
A) Trachea
B) Esophagus
C) Thoracic duct
D) Thymus
E) Great veins

C) Thoracic duct
Explanation: The thoracic duct is a major lymphatic vessel that carries lymphatic fluid, making it a crucial component in the lymphatic system.

p.2
Characteristics of Vertebrae Types

Which articulations are involved in the atlanto-axial joint?
A) Only the median atlanto-axial articulation
B) Only the lateral atlanto-axial articulation
C) Both median and lateral atlanto-axial articulations
D) The atlas and the sacrum
E) The axis and the lumbar vertebrae

C) Both median and lateral atlanto-axial articulations
Explanation: The atlanto-axial articulation consists of both median and lateral atlanto-axial articulations, allowing for rotational movements of the head.

p.5
Muscles of the Back and Their Functions

Which muscle is known as the 'coughing muscle'?
A) Trapezius
B) Levator scapula
C) Latissimus dorsi
D) Rhomboid major
E) Spinalis

C) Latissimus dorsi
Explanation: The latissimus dorsi is referred to as the 'coughing muscle' due to its role in the forceful contraction of the muscles involved in coughing, along with its functions in adduction and lowering of the arm.

p.11
Clinical Significance of Scoliosis, Kyphosis, and ...

What is cardiac tamponade?
A) A type of heart attack
B) A type of pericardial effusion
C) A condition causing high blood pressure
D) An inflammation of the heart muscle
E) A blockage in the coronary arteries

B) A type of pericardial effusion
Explanation: Cardiac tamponade refers to the accumulation of fluid in the pericardial space, which exerts pressure on the heart and prevents proper heart function.

p.4
Characteristics of Vertebrae Types

Where is the center of gravity located in relation to the sacral promontory?
A) 1 cm anterior to sacral promontory
B) At the sacral promontory
C) 1 cm posterior to sacral promontory
D) 5 cm below the sacral promontory
E) 2 cm above the sacral promontory

C) 1 cm posterior to sacral promontory
Explanation: The center of gravity is specifically noted to be located 1 cm posterior to the sacral promontory, which is important for understanding body mechanics and balance.

p.13
Clinical Significance of Scoliosis, Kyphosis, and ...

Which structures would be found in the supracardiac mediastinum?
A) Lungs and diaphragm
B) Heart and aorta
C) Thymus and great vessels
D) Esophagus and trachea
E) Liver and spleen

C) Thymus and great vessels
Explanation: The supracardiac mediastinum contains structures such as the thymus and the great vessels, which are essential components of the thoracic cavity.

p.6
Vertebral Foramen and Nerve Structures

What are the contents of the suboccipital triangle?
A) Suboccipital nerve, Vertebral artery, Suboccipital venous plexus
B) Dorsal nerve, Carotid artery, Jugular vein
C) Spinal nerve, Aorta, Intercostal veins
D) Lumbar nerve, Femoral artery, Iliac vein
E) Thoracic nerve, Pulmonary artery, Renal vein

A) Suboccipital nerve, Vertebral artery, Suboccipital venous plexus
Explanation: The contents of the suboccipital triangle include the suboccipital nerve (dorsal ramus of C1), the third part of the vertebral artery, and the suboccipital venous plexus.

p.13
Heart Anatomy and Clinical Significance

Where is the atrioventricular (A-V) node located?

In the right atrium on the ventricular side of the orifice of the coronary sinus.

p.13
Heart Anatomy and Clinical Significance

What are Purkinje fibers?

They are terminal fibers of the Bundle of His that merge with cardiac muscles.

p.6
Muscles of the Back and Their Functions

What are the contents of the suboccipital triangle?

Suboccipital nerve (dorsal ramus of C1), III part of vertebral artery, and suboccipital venous plexus.

p.6
Clinical Significance of Spinal Curvatures

Where is the site for epidural anesthesia?

In the lumbar region between L4 and L5.

p.6
Clinical Significance of Spinal Curvatures

What are the potential outcomes of spina bifida?

Meningocele (meninges protrude) or meningomyelocele (meninges plus spinal cord protrude).

p.7
Clinical Significance of Rib Fractures

What are true ribs?

Ribs 1-7 that connect directly to the sternum via costal cartilage.

p.9
Clinical Significance of Spinal Curvatures

What is pleuritis?

Inflammation of the pleura.

p.9
Cervical Vertebrae Anatomy

What does the trachea divide into?

Main bronchi (primary bronchus) at T4 (sternal angle), carina.

p.3
Sacrum and Coccyx Structure

What is the articulation of the sacrum with the lumbar vertebrae?

The superior surface of the sacrum articulates with L5.

p.14
Characteristics of Vertebrae Types

What is included in the layer associated with the arch of the aorta?
A) Phrenic nerves
B) Vagus nerves and sympathetic nerves
C) Esophagus
D) Thymus
E) Trachea

B) Vagus nerves and sympathetic nerves
Explanation: The layer associated with the arch of the aorta includes its branches as well as the vagus nerves and sympathetic and parasympathetic nerves to the heart, forming the cardiac plexus.

p.10
Heart Anatomy and Clinical Significance

What is the function of the pericardial cavity?
A) To provide structural support to the heart
B) To protect the heart against sudden overfilling
C) To facilitate gas exchange
D) To store blood
E) To connect the heart to the lungs

B) To protect the heart against sudden overfilling
Explanation: The pericardial cavity, which contains pericardial fluid, serves to protect the heart against sudden overfilling and provides a lubricated environment for heart movement.

p.8
Breast Anatomy and Clinical Significance

What is a potential complication of a mastectomy?
A) Increased lactation
B) Winged scapula due to thoracic nerve damage
C) Hormonal imbalance
D) Skin discoloration
E) Increased breast size

B) Winged scapula due to thoracic nerve damage
Explanation: A mastectomy can pose a risk to the thoracic nerve, which may lead to complications such as winged scapula.

p.7
Clinical Significance of Scoliosis, Kyphosis, and ...

Which rib is most commonly fractured?
A) 1st rib
B) 5th rib
C) 7th rib
D) 10th rib
E) 12th rib

B) 5th rib
Explanation: The middle ribs, particularly the 5th rib, are noted as the most commonly fractured, often due to trauma.

p.7
Muscles of the Back and Their Functions

Which muscles are responsible for elevating the thoracic cage?
A) Biceps and triceps
B) Scalene muscles, pectoralis major and minor, sternocleidomastoid, intercostal muscles
C) Quadriceps and hamstrings
D) Abdominal muscles
E) Gluteal muscles

B) Scalene muscles, pectoralis major and minor, sternocleidomastoid, intercostal muscles
Explanation: These muscles are involved in elevating the thoracic cage, which is important for respiration.

p.13
Conduction System Pathway of the Heart

What is the function of Purkinje fibers in the heart?
A) Generate electrical impulses
B) Conduct impulses to the atria
C) Merge with cardiac muscles to facilitate contraction
D) Regulate heart rate
E) Control blood flow

C) Merge with cardiac muscles to facilitate contraction
Explanation: Purkinje fibers are terminal fibers of the bundle of His that merge with cardiac muscles, allowing for the rapid conduction of impulses and facilitating coordinated heart contractions.

p.1
Characteristics of Vertebrae Types

How many cervical vertebrae are there?
A) 5
B) 7
C) 12
D) 14
E) 24

B) 7
Explanation: There are 7 cervical vertebrae, which are the smallest and lightest vertebrae in the spine, each with unique characteristics.

p.3
Characteristics of Vertebrae Types

How many thoracic vertebrae are there, and what is a unique feature of T1?
A) 12 thoracic vertebrae; T1 has a single facet
B) 10 thoracic vertebrae; T1 has a full facet for the first rib
C) 12 thoracic vertebrae; T1 has a full facet for the first rib
D) 10 thoracic vertebrae; T1 has no facets
E) 12 thoracic vertebrae; T1 has no facets

C) 12 thoracic vertebrae; T1 has a full facet for the first rib
Explanation: There are 12 thoracic vertebrae, and T1 is unique because it has a full facet for articulation with the first rib, which is important for rib attachment.

p.1
Curvatures of the Spine

What are the secondary curvatures of the spine?

Cervical and lumbar curvatures.

p.1
Clinical Significance of Spinal Curvatures

What is scoliosis?

An abnormal curvature of the thoracic spine that can be c or s shaped.

p.6
Clinical Significance of Spinal Curvatures

Why is the location of the spinal cord relevant for lumbar puncture?

To avoid puncturing the spinal cord, the procedure is performed below L1-L2, typically at L4-L5.

p.7
Clinical Significance of Rib Fractures

What can lower rib fractures damage?

They may damage the pleura and abdominal viscera such as the kidney, liver, and spleen.

p.6
Clinical Significance of Spinal Curvatures

What are the four levels of severity for spina bifida?

Spina bifida occulta, closed spinal dysraphism, meningocele, and myelomeningocele (most severe).

p.9
Clinical Significance of Rib Fractures

What is hydrothorax associated with?

Congestive heart failure.

p.9
Cervical Vertebrae Anatomy

What is the innervation of the lungs?

Sympathetic T1-T5 spinal nerves and the parasympathetic vagus nerve.

p.3
Thoracic and Lumbar Vertebrae Features

What type of joints are costo-vertebral joints?

Joints where the head of each rib articulates with two adjacent vertebrae and the disk between them.

p.2
Characteristics of Vertebrae Types

What movement does the atlanto-occipital joint primarily allow?
A) Rotation of the head
B) Lateral flexion
C) Flexion and extension
D) Abduction
E) Adduction

C) Flexion and extension
Explanation: The atlanto-occipital joint allows for flexion and extension of the neck, enabling the nodding motion of the head, commonly referred to as saying 'yes'.

p.10
Spinal Cord and Lumbar Puncture

What is the pathway of deoxygenated blood in pulmonary circulation?
A) From the left atrium to the lungs
B) From the pulmonary veins to the heart
C) From the right ventricle to the pulmonary trunk and arteries
D) From the lungs to the right ventricle
E) From the aorta to the lungs

C) From the right ventricle to the pulmonary trunk and arteries
Explanation: Deoxygenated blood flows from the right ventricle of the heart into the pulmonary trunk and then into the pulmonary arteries, leading to the lungs for oxygenation.

p.8
Clinical Significance of Scoliosis, Kyphosis, and ...

What is the clinical significance of breast cancer?
A) It causes increased lactation
B) It leads to skin dimpling and thickening
C) It results in breast enlargement
D) It affects the respiratory system
E) It causes hormonal imbalance

B) It leads to skin dimpling and thickening
Explanation: Breast cancer can cause symptoms such as dimpling (invagination) and thickening of the skin, particularly if the lymphatic system is blocked, indicating a serious condition.

p.4
Vertebral Foramen and Nerve Structures

What is contained within the vertebral foramen?
A) Spinal nerve roots only
B) Spinal cord, meninges, fat, vessels, CSF, and spinal nerve rootlets
C) Only blood vessels
D) Only the spinal cord
E) Intervertebral discs

B) Spinal cord, meninges, fat, vessels, CSF, and spinal nerve rootlets
Explanation: The vertebral foramen contains several critical structures including the spinal cord, meninges, fat, blood vessels, cerebrospinal fluid (CSF), and spinal nerve rootlets.

p.13
Conduction System Pathway of the Heart

What is the primary pacemaker of the heart?
A) Atrioventricular node
B) Bundle of His
C) Purkinje fibers
D) Sinus (sinuatrial) node
E) Coronary sinus

D) Sinus (sinuatrial) node
Explanation: The sinus (sinuatrial) node, also known as the pacemaker, generates rhythmical impulses at a frequency of approximately 70 beats per minute, initiating the heart's electrical conduction.

p.1
Clinical Significance of Scoliosis, Kyphosis, and ...

What is lordosis commonly referred to as?
A) Hunchback
B) Swayback
C) Flat back
D) C-shaped spine
E) S-shaped spine

B) Swayback
Explanation: Lordosis is characterized by an anterior curvature of the lumbar spine, commonly referred to as 'swayback,' and can be congenital or develop from specific physical activities.

p.6
Clinical Significance of Scoliosis, Kyphosis, and ...

Where is the site for epidural anesthesia?
A) Between C1 and C2
B) Between T4 and T5
C) Between L4 and L5
D) Between S1 and S2
E) Between L2 and L3

C) Between L4 and L5
Explanation: The site for epidural anesthesia is located in the lumbar region between L4 and L5, which is commonly used to administer anesthesia during childbirth.

p.9
Clinical Significance of Scoliosis, Kyphosis, and ...

What is the primary purpose of thoracentesis?
A) To diagnose lung cancer
B) To drain pleural fluid in pathological conditions
C) To perform a lung biopsy
D) To administer medication directly into the pleural space
E) To relieve pressure from the lungs

B) To drain pleural fluid in pathological conditions
Explanation: Thoracentesis, or pleural tap, is a procedure performed to drain excess fluid from the pleural cavity in cases of pathological conditions.

p.3
Clinical Significance of Scoliosis, Kyphosis, and ...

What is a Hangman Fracture?
A) A fracture of the lumbar vertebrae
B) A fracture of the thoracic vertebrae
C) A fracture in the arch of the axis that compresses the brain stem
D) A fracture of the sacrum
E) A fracture of the cervical vertebrae that does not affect the spinal cord

C) A fracture in the arch of the axis that compresses the brain stem
Explanation: A Hangman Fracture occurs in the arch of the axis (C2) and can push the dens posteriorly, leading to compression of the brain stem, which can result in death.

p.11
Heart Anatomy and Clinical Significance

What is the pathway of blood flow through the heart?

Blood passes through the right atrium, right ventricle, pulmonary arteries, left atrium, left ventricle, and aorta.

p.4
Cervical Vertebrae Anatomy

What does the transverse foramen contain?

Vertebral artery and vein.

p.7
Clinical Significance of Rib Fractures

Which rib is most commonly fractured?

The middle ribs.

p.7
Heart Anatomy and Clinical Significance

What is the sternal angle?

The junction where the manubrium and body of the sternum meet.

p.7
Clinical Significance of Rib Fractures

What are floating ribs?

The 11th and 12th ribs that do not connect to the sternum at all.

p.9
Clinical Significance of Rib Fractures

What is thoracentesis?

A procedure to drain pleural fluid in pathological conditions.

p.3
Cervical Vertebrae Anatomy

What is the function of the dens (odontoid process) in the axis?

Acts as a pivot for rotation of the atlas and skull.

p.5
Muscles of the Back and Their Functions

What is the innervation of the rhomboid major and minor muscles?
A) Thoracodorsal nerve
B) Dorsal scapular nerve C4-C5
C) Axillary nerve
D) Long thoracic nerve
E) Suprascapular nerve

B) Dorsal scapular nerve C4-C5
Explanation: Both the rhomboid major and minor muscles are innervated by the dorsal scapular nerve, specifically from the C4-C5 spinal nerves.

p.11
Heart Anatomy and Clinical Significance

Which artery supplies the right atrium?
A) Left coronary artery
B) Right coronary artery
C) Anterior ventricular artery
D) Circumflex branch
E) Left marginal artery

B) Right coronary artery
Explanation: The right coronary artery is responsible for supplying blood to the right atrium, making it crucial for the heart's function.

p.4
Characteristics of Vertebrae Types

What is the coccyx commonly known as?
A) Spine
B) Tailbone
C) Sacrum
D) Vertebral column
E) Lumbar vertebrae

B) Tailbone
Explanation: The coccyx is commonly referred to as the 'tailbone,' and it is formed from 3–5 fused vertebrae, playing a minor role in supporting pelvic organs.

p.13
Clinical Significance of Scoliosis, Kyphosis, and ...

Which of the following is NOT a symptom of rheumatic fever?
A) Arthritis
B) Chorea
C) Skin involvement (erythema)
D) Hypertension
E) Subcutaneous nodules

D) Hypertension
Explanation: Symptoms of rheumatic fever include arthritis, chorea, skin involvement (erythema), and subcutaneous nodules, but hypertension is not typically associated with this condition.

p.9
Tracheal Divisions and Bronchopulmonary Segments

What unique feature does the trachea contain?
A) Smooth muscle only
B) C-shaped cartilage rings
C) Solid structure without any openings
D) Elastic fibers only
E) No mucus membrane

B) C-shaped cartilage rings
Explanation: The trachea is characterized by C-shaped cartilage rings that provide structural support while allowing flexibility.

p.4
Vertebrae Characteristics

What is found in the intervertebral foramen?

Spinal nerve/nerve roots, dorsal root ganglion, vessels.

p.4
Intervertebral Discs and Herniation

What is the function of the intervertebral disc?

Acts as a shock absorber, is compressible, and permits slight movement of vertebrae.

p.1
Clinical Significance of Spinal Curvatures

How can lordosis develop?

It can be congenital or form from specific physical activities like gymnastics.

p.1
Vertebrae Characteristics

Where do the superior articular facets of cervical vertebrae face?

Posteriorly.

p.9
Clinical Significance of Rib Fractures

What is chylothorax a result of?

Injury to the thoracic duct.

p.9
Cervical Vertebrae Anatomy

What type of cartilage does the trachea contain?

C-shaped cartilage rings.

p.3
Sacrum and Coccyx Structure

How is the sacrum formed?

From the fusion of 5 vertebrae.

p.10
Heart Anatomy and Clinical Significance

Which layer of the heart wall is closely attached to the heart?
A) Myocardium
B) Endocardium
C) Epicardium
D) Parietal pericardium
E) Visceral pericardium

C) Epicardium
Explanation: The epicardium, also known as the visceral pericardium, is the layer of the heart wall that is closely attached to the heart itself.

p.8
Clinical Significance of Scoliosis, Kyphosis, and ...

What is gynecomastia?
A) Breast cancer in women
B) Overdevelopment of breast tissue in men
C) A type of breast surgery
D) A hormonal disorder in women
E) A form of breast infection

B) Overdevelopment of breast tissue in men
Explanation: Gynecomastia refers to the overdevelopment or overgrowth of breast tissue in men or boys, often associated with conditions like Klinefelter syndrome.

p.7
Clinical Significance of Scoliosis, Kyphosis, and ...

What may be damaged by fractures of the lower ribs?
A) Only the skin
B) The pleura and abdominal viscera (kidney, liver, spleen)
C) The heart
D) The spinal cord
E) The diaphragm

B) The pleura and abdominal viscera (kidney, liver, spleen)
Explanation: Fractures of the lower ribs can lead to damage of the pleura and abdominal organs such as the kidney, liver, and spleen, which is clinically significant.

p.4
Clinical Significance of Scoliosis, Kyphosis, and ...

What is the clinical significance of a 'Hangman Fracture'?
A) It affects the lumbar vertebrae
B) It is a fracture of the cervical vertebrae axis
C) It is a fracture of the coccyx
D) It is a fracture of the thoracic vertebrae
E) It is a fracture of the sacrum

B) It is a fracture of the cervical vertebrae axis
Explanation: A 'Hangman Fracture' specifically involves a fracture of the cervical vertebrae axis (C2), which can lead to severe complications, including pressure on the brain stem and potential death.

p.1
Characteristics of Vertebrae Types

What is a unique feature of cervical vertebrae?
A) Long spinous processes
B) Large and triangular vertebral foramen
C) No transverse foramina
D) Flat superior articular facets
E) They contain the vertebral artery

B) Large and triangular vertebral foramen
Explanation: Cervical vertebrae are characterized by having a large and triangular vertebral foramen, which is essential for accommodating the spinal cord.

p.9
Muscles of the Back and Their Functions

Which spinal nerves are responsible for sympathetic innervation of the lungs?
A) T1-T5 spinal nerves
B) T6-T12 spinal nerves
C) C1-C3 spinal nerves
D) L1-L3 spinal nerves
E) S1-S5 spinal nerves

A) T1-T5 spinal nerves
Explanation: The sympathetic innervation of the lungs is primarily provided by the T1-T5 spinal nerves, which play a role in regulating bronchial dilation and vasoconstriction.

p.3
Characteristics of Vertebrae Types

What is the primary function of the lumbar vertebrae?
A) To allow for rotation
B) To allow for flexion and extension
C) To support the ribs
D) To protect the brain
E) To facilitate head movement

B) To allow for flexion and extension
Explanation: The lumbar vertebrae are designed to allow for flexion and extension movements, while rotation is prevented, making them crucial for lower back mobility.

p.6
Clinical Significance of Spinal Curvatures

What is spina bifida?

A congenital disorder caused by the failure of vertebral arches to form and fuse, usually in lumbar or sacral vertebrae.

p.1
Vertebrae Characteristics

What do the transverse foramina in cervical vertebrae contain?

The vertebral artery.

p.9
Clinical Significance of Rib Fractures

What causes pyothorax?

Infection.

p.9
Cervical Vertebrae Anatomy

What is the length and width of the trachea?

12 cm long and 2 cm wide.

p.3
Thoracic and Lumbar Vertebrae Features

What are the characteristics of lumbar vertebrae?

Thick and robust bodies, thin and tapered transverse processes, thick and blunt spinous processes pointing posteriorly, and triangular vertebral foramina.

p.2
Characteristics of Vertebrae Types

What is a key feature of the atlas (C1)?
A) It has a body and spinous process
B) It supports the skull
C) It allows rotation of the head
D) It is the largest vertebra
E) It connects to the sacrum

B) It supports the skull
Explanation: The atlas (C1) is unique in that it lacks a body and spinous process, and its primary function is to support the skull, allowing for nodding movements.

p.8
Breast Anatomy and Clinical Significance

Which hormone is responsible for the growth of tubular tissue in the breast?
A) Progesterone
B) Testosterone
C) Estrogen
D) Prolactin
E) Oxytocin

C) Estrogen
Explanation: Estrogen is responsible for the growth of tubular tissue in the breast, playing a crucial role in breast development.

p.11
Heart Anatomy and Clinical Significance

What is the pathway of blood flow through the heart?
A) Right atrium → Right ventricle → Lungs → Left atrium → Left ventricle
B) Left atrium → Left ventricle → Aorta → Body → Right atrium
C) Right atrium → Left atrium → Right ventricle → Left ventricle
D) Right atrium → Right ventricle → Aorta → Body → Left atrium
E) Left atrium → Right atrium → Left ventricle → Right ventricle

A) Right atrium → Right ventricle → Lungs → Left atrium → Left ventricle
Explanation: The correct pathway of blood flow through the heart starts from the right atrium, moves to the right ventricle, then to the lungs for oxygenation, and returns to the left atrium before entering the left ventricle.

p.4
Characteristics of Vertebrae Types

What does it mean for a disc to herniate?
A) It becomes thicker
B) It bulges out of its normal space
C) It calcifies
D) It shrinks in size
E) It becomes inflamed

B) It bulges out of its normal space
Explanation: Herniation of a disc refers to the condition where the disc bulges out of its normal space, often occurring posterolaterally where the annulus fibrosus is thinner, leading to potential nerve compression.

p.1
Clinical Significance of Scoliosis, Kyphosis, and ...

What causes kyphosis?
A) Genetic factors
B) Poor posture
C) Loss of muscle tonicity
D) Injury
E) Overexertion in sports

C) Loss of muscle tonicity
Explanation: Kyphosis is a posterior curvature of the thoracic spine that is often part of the aging process and is caused by the loss of muscle tonicity.

p.6
Spinal Cord and Lumbar Puncture

Why is it important to perform a lumbar puncture below the spinal cord?
A) To avoid damaging the vertebrae
B) To prevent puncturing the spinal cord
C) To ensure better fluid extraction
D) To minimize patient discomfort
E) To avoid infection

B) To prevent puncturing the spinal cord
Explanation: Performing a lumbar puncture at the L4-L5 level is crucial to avoid puncturing the spinal cord, which ends at L1-L2, thereby reducing the risk of injury.

p.3
Characteristics of Vertebrae Types

What is the primary function of the dens (odontoid process) in the axis (C2)?
A) To support the skull
B) To act as a pivot for rotation of the atlas and skull
C) To protect the spinal cord
D) To provide attachment for muscles
E) To absorb shock during movement

B) To act as a pivot for rotation of the atlas and skull
Explanation: The dens projects superiorly from the axis and acts as a pivot point, allowing for the rotation of the atlas and the skull, which is essential for head movement.

p.7
Vertebrae Characteristics

How do the ribs articulate with the vertebrae?

The head and tubercles of the ribs have articular surfaces for articulation with the body and transverse processes of the vertebrae.

p.7
Clinical Significance of Rib Fractures

What is the significance of the internal thoracic artery?

It gives a distal branch called the musculophrenic artery and continues as the internal thoracic artery.

p.9
Clinical Significance of Rib Fractures

What is the danger of performing thoracentesis below the 9th intercostal space?

Risk of injuring the liver on the right side.

p.3
Thoracic and Lumbar Vertebrae Features

What is unique about the bodies of thoracic vertebrae from a superior view?

They have heart-shaped bodies.

p.14
Characteristics of Vertebrae Types

What does the trachea bifurcate into?
A) Lungs
B) Esophagus
C) Mainstem bronchi
D) Phrenic nerves
E) Great veins

C) Mainstem bronchi
Explanation: The trachea bifurcates into the left and right mainstem bronchi, which lead to the lungs for air passage.

p.5
Muscles of the Back and Their Functions

Which of the following muscles is NOT part of the erector spinae group?
A) Spinalis
B) Longissimus
C) Iliocostalis
D) Latissimus dorsi
E) All of the above are part of the erector spinae

D) Latissimus dorsi
Explanation: The erector spinae group consists of the spinalis, longissimus, and iliocostalis muscles. The latissimus dorsi is not part of this group.

p.8
Breast Anatomy and Clinical Significance

What is the retromammary space?
A) A type of breast cancer
B) A space between the breast and the chest wall
C) A glandular structure in the breast
D) A type of breast tissue
E) A muscle associated with the breast

B) A space between the breast and the chest wall
Explanation: The retromammary space is the area located between the breast and the chest wall, which is important for the movement and support of the breast.

p.7
Characteristics of Vertebrae Types

Which part of the sternum meets the body at the sternal angle?
A) Xiphoid process
B) Manubrium
C) Costal cartilage
D) Clavicle
E) Ribs

B) Manubrium
Explanation: The manubrium of the sternum meets the body at the sternal angle, an important anatomical landmark.

p.7
Vertebral Foramen and Nerve Structures

Where are the intercostal vessels and nerves located?
A) In the abdominal cavity
B) Anterior and posterior to the ribs
C) Only in the thoracic cavity
D) In the neck region
E) Within the lungs

B) Anterior and posterior to the ribs
Explanation: The intercostal vessels and nerves are located both anteriorly and posteriorly to the ribs, which is clinically significant for procedures like thoracentesis.

p.1
Curvatures of the Spine

What are the primary curvatures of the spine?
A) Cervical and lumbar
B) Sacral and thoracic
C) Thoracic and cervical
D) Lumbar and sacral
E) Lumbar and thoracic

B) Sacral and thoracic
Explanation: The primary curvatures of the spine are the sacral and thoracic curvatures, which are present at birth and convex posteriorly.

p.6
Spinal Cord and Lumbar Puncture

At what level does the spinal cord end?
A) C1-C2
B) T1-T2
C) L1-L2
D) S1-S2
E) L4-L5

C) L1-L2
Explanation: The spinal cord ends at the L1-L2 level, where it transitions into the conus medullaris, which is important for understanding lumbar puncture procedures.

p.9
Clinical Significance of Scoliosis, Kyphosis, and ...

What causes chylothorax?
A) Congestive heart failure
B) Infection
C) Injury to the thoracic duct
D) Inflammation of the pleura
E) Blood in the pleural cavity

C) Injury to the thoracic duct
Explanation: Chylothorax is caused by injury to the thoracic duct, leading to the accumulation of lymphatic fluid in the pleural cavity.

p.3
Sacrum and Coccyx Structure

What does the sacral promontory refer to?

The bulge of the first sacral vertebra into the pelvic cavity.

p.14
Characteristics of Vertebrae Types

Which structure is NOT one of the five layers mentioned?
A) Thymus
B) Great veins related to the heart
C) Lungs
D) Arch of aorta
E) Trachea and its bifurcation

C) Lungs
Explanation: The lungs are not listed as one of the five layers of structures; the mentioned layers include the thymus, great veins, arch of aorta, trachea, and esophagus.

p.10
Characteristics of Vertebrae Types

What is the primary difference between the right and left main bronchi?
A) The right main bronchus is longer and less steep
B) The left main bronchus is shorter and wider
C) The right main bronchus is shorter, wider, and more vertical
D) The left main bronchus is more vertical
E) Both bronchi are of equal length and width

C) The right main bronchus is shorter, wider, and more vertical
Explanation: The right main bronchus is characterized as being shorter (2.5 cm), wider, and more vertical compared to the left main bronchus, which is longer (5 cm) and less steep.

p.5
Muscles of the Back and Their Functions

What is the primary function of the trapezius muscle?
A) Elevation of the arm
B) Elevation and retraction of the scapula
C) Medial rotation of the arm
D) Adduction of the arm
E) Extension of the arm

B) Elevation and retraction of the scapula
Explanation: The trapezius muscle is primarily responsible for the elevation and retraction of the scapula, as well as assisting in the adduction and slight elevation of the arm.

p.11
Clinical Significance of Scoliosis, Kyphosis, and ...

What are the main symptoms of pericarditis?
A) Severe pain and friction rub
B) Shortness of breath and dizziness
C) Chest tightness and nausea
D) Fatigue and palpitations
E) Swelling in the legs and feet

A) Severe pain and friction rub
Explanation: Pericarditis is characterized by severe pain and a friction rub, which are key clinical signs indicating inflammation of the pericardium.

p.7
Clinical Significance of Scoliosis, Kyphosis, and ...

What is the clinical significance of a fracture in the 1st rib?
A) Commonly fractured with no significant risk
B) Rarely fractured, but poses a danger to blood vessels
C) Easily healed with minimal complications
D) Causes immediate damage to the lungs
E) Only affects the surrounding muscles

B) Rarely fractured, but poses a danger to blood vessels
Explanation: The 1st rib is rarely fractured, but when it is, it poses a significant risk to nearby blood vessels, making it clinically important.

p.13
Clinical Significance of Scoliosis, Kyphosis, and ...

What is a primary cause of rheumatic fever?
A) Viral infection
B) Chronic tonsillitis or pharyngitis by streptococcus infection
C) Bacterial pneumonia
D) Allergic reaction
E) Autoimmune disorder

B) Chronic tonsillitis or pharyngitis by streptococcus infection
Explanation: Rheumatic fever is primarily caused by acute inflammation resulting from a complication of chronic tonsillitis or pharyngitis due to streptococcus infection, highlighting its infectious origin.

p.13
Conduction System Pathway of the Heart

Where is the atrioventricular (A-V) node located?
A) In the left ventricle
B) In the right atrium on the ventricular side of the orifice of the coronary sinus
C) In the interventricular septum
D) At the base of the aorta
E) In the left atrium

B) In the right atrium on the ventricular side of the orifice of the coronary sinus
Explanation: The atrioventricular (A-V) node is situated in the right atrium, specifically on the ventricular side of the orifice of the coronary sinus, playing a crucial role in the heart's conduction system.

p.6
Muscles of the Back and Their Functions

What muscles form the boundaries of the suboccipital triangle?
A) Rectus abdominis, External oblique, Internal oblique
B) Obliquus capitis superior, Obliquus capitis inferior, Rectus capitis posterior
C) Trapezius, Latissimus dorsi, Rhomboid
D) Erector spinae, Multifidus, Semispinalis
E) Pectoralis major, Pectoralis minor, Serratus anterior

B) Obliquus capitis superior, Obliquus capitis inferior, Rectus capitis posterior
Explanation: The suboccipital triangle is formed by the Obliquus capitis superior, Obliquus capitis inferior, and Rectus capitis posterior muscles, which define its anatomical boundaries.

p.6
Clinical Significance of Spina Bifida

What is spina bifida?
A) A type of spinal fracture
B) A congenital disorder affecting vertebral fusion
C) A condition caused by spinal cord injury
D) A type of muscle strain
E) A degenerative spinal disease

B) A congenital disorder affecting vertebral fusion
Explanation: Spina bifida is a congenital disorder characterized by the failure of vertebral arches to form and fuse, leading to various levels of severity and complications.

p.9
Tracheal Divisions and Bronchopulmonary Segments

What is the length of the trachea?
A) 10 cm
B) 12 cm
C) 15 cm
D) 20 cm
E) 25 cm

B) 12 cm
Explanation: The trachea is approximately 12 cm long and serves as the main airway leading to the bronchi.

p.3
Characteristics of Vertebrae Types

What is the sacrum formed from?
A) 3 fused vertebrae
B) 5 fused vertebrae
C) 7 fused vertebrae
D) 12 individual vertebrae
E) 4 fused vertebrae

B) 5 fused vertebrae
Explanation: The sacrum is formed from the fusion of 5 vertebrae, which shapes the posterior wall of the pelvis and provides structural support.

p.14
Characteristics of Vertebrae Types

Which nerves are associated with the esophagus?
A) Phrenic nerves
B) Current laryngeal nerves
C) Vagus nerves
D) Sympathetic nerves
E) All of the above

E) All of the above
Explanation: The esophagus is associated with various nerves, including current laryngeal nerves, vagus nerves, and sympathetic nerves, which play roles in its function and innervation.

p.2
Characteristics of Vertebrae Types

What is the primary function of the axis (C2)?
A) To support the skull
B) To allow nodding of the head
C) To facilitate rotation of the head
D) To connect to the lumbar vertebrae
E) To provide stability to the cervical spine

C) To facilitate rotation of the head
Explanation: The axis (C2) plays a crucial role in allowing rotational movements of the head, particularly in conjunction with the atlas (C1).

p.5
Muscles of the Back and Their Functions

What is the primary function of the levator scapula muscle?
A) Adduction of the arm
B) Elevation of the scapula
C) Retraction of the scapula
D) Extension of the arm
E) Medial rotation of the arm

B) Elevation of the scapula
Explanation: The primary function of the levator scapula muscle is to elevate the scapula, contributing to shoulder movement.

p.11
Heart Anatomy and Clinical Significance

Which vein lies in the anterior interventricular groove?
A) Great cardiac vein
B) Middle cardiac vein
C) Small cardiac vein
D) Posterior vein of the left ventricle
E) Left marginal vein

A) Great cardiac vein
Explanation: The great cardiac vein is located in the anterior interventricular groove and is one of the main coronary veins draining into the coronary sinus.

p.7
Characteristics of Vertebrae Types

How many pairs of ribs are considered true ribs?
A) 5 pairs
B) 7 pairs
C) 10 pairs
D) 12 pairs
E) 14 pairs

B) 7 pairs
Explanation: There are 12 pairs of ribs in total, with the first 7 pairs classified as true ribs because they connect directly to the sternum via costal cartilage.

p.13
Clinical Significance of Scoliosis, Kyphosis, and ...

What complication can arise from nodules on the heart valves due to rheumatic fever?
A) Increased heart rate
B) Valvular incompetence (blood regurgitation)
C) Myocardial infarction
D) Aneurysm formation
E) Pericarditis

B) Valvular incompetence (blood regurgitation)
Explanation: Nodules on the heart valves can cause irregular blood flow and valvular incompetence, leading to blood regurgitation and the development of a murmur.

p.1
Clinical Significance of Scoliosis, Kyphosis, and ...

What is scoliosis?
A) An abnormal curvature of the lumbar spine
B) An abnormal curvature of the thoracic spine
C) A normal curvature of the cervical spine
D) A condition affecting the sacral curvature
E) A type of lordosis

B) An abnormal curvature of the thoracic spine
Explanation: Scoliosis is characterized by an abnormal curvature of the thoracic spine, which can take on a c or s shape and may be treated with a brace or surgery if caught early.

p.1
Characteristics of Vertebrae Types

What do the superior articular facets of cervical vertebrae face?
A) Anteriorly
B) Laterally
C) Posteriorly
D) Inferiorly
E) Superiorly

C) Posteriorly
Explanation: The superior articular facets of cervical vertebrae face posteriorly, which is a distinctive feature that aids in the articulation of the vertebrae.

p.9
Clinical Significance of Scoliosis, Kyphosis, and ...

What is hydrothorax primarily associated with?
A) Infection
B) Congestive heart failure
C) Injury to the thoracic duct
D) Blood in the pleural cavity
E) Inflammation of the pleura

B) Congestive heart failure
Explanation: Hydrothorax is a condition characterized by the accumulation of fluid in the pleural cavity, commonly associated with congestive heart failure.

p.11
Heart Anatomy and Clinical Significance

What does the left coronary artery supply?
A) Right atrium and right ventricle
B) Left atrium, left surface, and left ventricle
C) Only the interventricular septum
D) Right marginal artery
E) Posterior part of the interventricular septum

B) Left atrium, left surface, and left ventricle
Explanation: The left coronary artery supplies the left atrium, the left surface of the heart, and the left ventricle, playing a vital role in cardiac circulation.

p.4
Clinical Significance of Scoliosis, Kyphosis, and ...

What is a common cause of injury to the coccygeal vertebrae?
A) Lifting heavy objects
B) Falling on buttocks
C) Running long distances
D) Sitting for extended periods
E) Swimming

B) Falling on buttocks
Explanation: Injury to the coccygeal vertebrae often occurs from falling on the buttocks, particularly in females, which can lead to conditions such as coccydynia (pain in the coccyx).

p.4
Characteristics of Vertebrae Types

What is the primary function of the intervertebral disc?
A) To provide structural support to the spine
B) To act as a shock absorber
C) To connect muscles to bones
D) To protect the spinal cord
E) To facilitate blood flow

B) To act as a shock absorber
Explanation: The intervertebral disc primarily functions as a shock absorber, allowing for slight movement between vertebrae and helping to cushion the spine during activities.

p.1
Curvatures of the Spine

At what age do the secondary curvatures of the spine develop?
A) At birth
B) When we begin to walk
C) At puberty
D) During adolescence
E) In old age

B) When we begin to walk
Explanation: The secondary curvatures, which include the cervical and lumbar curvatures, develop when we begin to walk, indicating a significant milestone in human development.

p.6
Clinical Significance of Spina Bifida

What can reduce the risk of spina bifida during pregnancy?
A) Increased exercise
B) Folic acid supplementation
C) High protein diet
D) Avoiding alcohol
E) Regular prenatal check-ups

B) Folic acid supplementation
Explanation: Folic acid supplementation during conception and pregnancy has been shown to decrease the risk of spina bifida, although it does not completely prevent it.

p.9
Clinical Significance of Scoliosis, Kyphosis, and ...

What is pyothorax?
A) Blood in the pleural cavity
B) Inflammation of the pleura
C) Infection in the pleural cavity
D) Injury to the thoracic duct
E) Fluid accumulation due to heart failure

C) Infection in the pleural cavity
Explanation: Pyothorax refers to the presence of pus in the pleural cavity, typically resulting from an infection.

p.9
Clinical Significance of Scoliosis, Kyphosis, and ...

What is a key consideration when performing thoracentesis?
A) Always perform below the 9th intercostal space
B) Patient should be lying flat
C) Determine fluid level by percussion
D) Use a large needle
E) Perform only in emergency situations

C) Determine fluid level by percussion
Explanation: Before performing thoracentesis, it is crucial to determine the fluid level by percussion and to select the appropriate intercostal spaces for the procedure.

p.3
Characteristics of Vertebrae Types

What is the shape of the bodies of thoracic vertebrae when viewed from above?
A) Circular
B) Square
C) Heart-shaped
D) Triangular
E) Oval

C) Heart-shaped
Explanation: The bodies of thoracic vertebrae have a heart-shaped appearance when viewed from the superior perspective, which is a distinguishing characteristic of this vertebrae type.

Study Smarter, Not Harder
Study Smarter, Not Harder