There are four ventricles or cavities in the human central nervous system. The table below summarizes the part of the brain and what the respective ventricle is called. Do memorize this table by heart.
Part of Brain | Cavity |
Cerebrum (right and left cerebral hemispheres) | Right and left lateral ventricles |
Diencephalon (thalamus and hypothalamus) | Third ventricle |
Midbrain | Cerebral aqueduct |
Hind brain (pons, medulla, and cerebellum) | Fourth ventricle |

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