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Fourth Ventricle
Nervous System

Fourth Ventricle

Ventriculus quartus

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Quick Facts

The fourth ventricle (aka fourth cerebral ventricle) is situated between the cerebellum and brainstem, lying anterior to the cerebellum and posterior to the pons and medulla. It communicates with the third ventricle via the cerebral aqueduct. It narrows rostrally to become continuous with the central canal of the spinal cord at the obex. The fourth ventricle communicates with the subarachnoid space via three foramen; these are the foramen of Magendie and the two foramina of Luschka.

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Fourth Ventricle

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The fourth ventricle is a cavity of hindbrain connected to the third ventricle by a narrow cerebral aqueduct.

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