Floor Of The 4th Ventricle
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Inside the brain there are four cavities called ventricles.
Floor of the 4th ventricle. Its floor is formed by the tegmentum of the midbrain. Fourth ventricle location shown in red e pons b. The roof of fourth ventricle is the dorsal surface of the fourth ventricle. It is 1 5 cm long and 1 2 mm in diameter.
The fourth ventricle contains. The floor of the ventricle is to the right the roof to the left 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 right and left lateral ventricles and the third and fourth ventricles compose the ventricular system. The floor of the fourth ventricle is also referred to as the rhomboid fossa because of its shape.
Its rhomboid in shape diamond shaped and as a result of its shape the floor of the 4th ventricle is usually referred to as rhomboid fossa. It corresponds to the ventral surface of the cerebellum. The upper portion of the roof is formed by the cerebellum. The floor of the 4th ventricle is composed by the posterior surface of the pons and the upper part of the medulla.
The floor of the fourth ventricle also known as rhomboid fossa is formed by the dorsal surfaces of the pons and medulla oblongata. The roof of ventricle is diamond shaped and can be divided into superior and inferior parts.
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