Ventricles of the Brain

Subarachnoid space

contains cerebrospinal fluid

Flow of CSF

lateral ventricles >interventricular foramen > 3rd > aqueduct of the midbrain > 4th > subarachnoid space > out arachnoid villi into blood stream > Heart and lungs to be returned to the ventricles to be recycled.

choroid plexuses

masses of blood capillaries in brain ventricles that produce CSF

Central canal

- A tiny channel found within the spinal cord and inferior medulla oblongata - H

median aperture

- An opening in the roof of the fourth ventricle that connects to the subarachnoid space - F

Aqueduct of midbrain (Cerebral aqueduct)

- Connecting tube between third ventricle and fourth ventricle - D

lateral aperture

- Holes in 4th ventricle that allowes CSF to pass through. Also called Foramina of Lushke - G

third ventricle of brain

- Most central brain ventricle, ventral to the lateral ventricle, with the mesencephalic duct found inside it - C

fourth ventricle of brain

- The choroid plexus is located within this brain ventricle, found regionally under the cerebellum - E

Interventricular foramen

- connects lateral ventricles to third ventricle - B

lateral ventricles of brain

- ventricles found in each cerebral hemisphere - A