Roof And Floor Of 4th Ventricle

The roof is composed of the cerebellum located at the back of the brain and the floor is formed by. The caudal tip of the fourth ventricle where it becomes the central canal is known as the obex. The bounds of the 4th ventricle contain sidelong boundaries a roof and a floor lateral bounds lateral walls.

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Roof of the fourth ventricle formed by thin laminae of white matter.

Roof and floor of 4th ventricle. The fourth ventricle has a roof at its upper posterior surface and a floor at its lower anterior surface and side walls formed by the cerebellar peduncles nerve bundles joining the structure on the posterior side of the ventricle to the structures on the anterior side. The lateral boundaries are formed on each side by the superior cerebellar peduncle the inferior cerebellar peduncle and the cuneate and gracile tubercles. On every side the 4th ventricle is limted inferiolaterally by the inferior cerebellar peduncle sup plemented by gracile and cuneate tubercles and superolaterally by the superior cerebellar peduncle. This ventricle has a roof and a floor.

The fourth ventricle contains cerebrospinal fluid. The obex is also a. The fourth ventricle has an anterior ventral floor with a characteristic diamond shape named the rhomboid fossa and a posterior dorsal tent shaped roof. The roof of fourth ventricle is the dorsal surface of the fourth ventricle.

The upper portion of the roof is formed by the cerebellum. The fourth ventricle has lateral boundaries a roof and a floor. It corresponds to the ventral surface of the cerebellum. Csf produced and or flowing into the fourth ventricle can exit to the subarachnoid space through lateral apertures and a single median aperture located in the inferiorportion of the roof.

The roof of ventricle is diamond shaped and can be divided into superior and inferior parts.