CNS
ventricles
brain, spinal
Choroid
brain
brain
third
semi
blood vessels
shunt
unidirectional
subarachnoid
Luschka, Magendie
lateral
cerebrospinal fluid (CSF)
capillary
some
Astrocytes
CSF
extracellular
arteries
plasma
extracellular
third, fourth
tumors
waste
cerebrospinal fluid (CSF)
capillaries
Monro
filtration
venous
venous