The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. These cavities, known collectively as the ventricular system, consist of the left and right lateral ventricles, the third ventricle, and the fourth ventricle. The fourth ventricle extends from the cerebral aqueduct (aqueduct of Sylvius) to the obex, and is filled with cerebrospinal fluid (CSF).
The fourth ventricle has a characteristic diamond shape in cross-sections of the human brain. It is located within the pons or in the upper part of the medulla. CSF entering the fourth ventricle through the cerebral aqueduct can exit to the subarachnoid space of the spinal cord through two lateral foramina of Luschka (singular: foramen of Luschka) and a single, midline foramen of Magendie (see List of human anatomical parts named after people).
Other articles related to "fourth ventricle, fourth, fourth ventricles":
... N1A/2AB/C/3/4/7A/B/C/D) Ventricular system, rhombencephalon, met- and myel- fourth ventricle (TA A14.1.05.701–726, GA 9.797) Roof (dorsal) rostral Superior medullary velum (Frenulum) caudal ...
... The lateral recess is a projection of the fourth ventricle which extends into the inferior cerebellar peduncle of the brainstem ... Ventricular system, rhombencephalon, met- and myel- fourth ventricle (TA A14.1.05.701–726, GA 9.797) Roof (dorsal) rostral Superior medullary velum (Frenulum) caudal Inferior medullary velum · Taenia of fourth ...
... The fourth ventricle, similarly to other parts of the ventricular system of the brain, develops from the central canal of the neural tube ... Specifically, the fourth ventricle originates from the portion of the tube that is present in the developing rhombencephalon ... canal expands into lateral, third and fourth ventricles, connected by thinner channels ...
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