Roof Of Fourth Ventricle Anatomy

The roof of fourth ventricle is the dorsal surface of the fourth ventricle.

Roof of fourth ventricle anatomy.

It is widest at the level of the pontomedullary junction. The upper part of the roof is composed by a thin sheet of white matter the superior medullary velum that stretches between both superior cerebellar peduncles. The 4th ventricle is in the form of a spread and irregular cone whose base or floor is supported on the dorsal side of the brainstem. It corresponds to the ventral surface of the cerebellum.

The fourth ventricle contains choroid plexus along its roof along the tela choroidea which may protrude out the lateral foramina of luschka. This apex also known as the fastigium extends into the white core of the cerebellum. The sidewalls are formed by the veli and cerebellar peduncles. The roof of ventricle is diamond shaped and can be divided into superior and inferior parts.

The obex is the most caudal tip of the fourth ventricle. Overlies the vestib ular nuclei hence it is termed vestibular area. The superior part of the roof is formed by the superior cerebellar peduncles and the superior medullary velum thin sheet of white matter. The upper portion of the roof is formed by the cerebellum.

The apex of the tent goes posteriorly into the white core of the cerebellum. Roof posterior wall the roof of the 4th ventricle is tent shaped and has upper and lower sloping surfaces. The roof is composed of the cerebellum located at the back of the brain and the floor is formed by the rhomboid fossa a depression in the brainstem. It rises up and backwards forming two walls called the roof of the 4th ventricle which converge into a summit located in the anterior part of the cerebellar vermis fig.

Lateral to sulcus limitans. This ventricle has a roof and a floor. The roof of fourth ventricle is the dorsal surface of the fourth ventricle. Medial eminence is bounded laterally by sulcus limitans.

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. Anatomical terms of neuroanatomy. Features of the floor of fourth ventricle median sulcus. The roof of fourth ventricle is tent shaped and is divided into upper and lower part.

Superior fovea upper end of sulcus limitans widens into a triangular depression.