The roof of fourth ventricle is the dorsal surface of the
fourth ventricle
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 ...
.
It corresponds to the ventral surface of the
cerebellum
The cerebellum (: cerebella or cerebellums; Latin for 'little brain') is a major feature of the hindbrain of all vertebrates. Although usually smaller than the cerebrum, in some animals such as the mormyrid fishes it may be as large as it or eve ...
.
The upper portion of the roof is formed by the cerebellum.
The roof of ventricle is diamond shaped and can be divided into superior and inferior parts.
The superior part or cranial part is formed by superior cerebellar peduncles and superior medullary velum. The inferior or caudal part is formed by ventricular ependyma and double fold of pia mater.
Additional images
File:Gray649.png, Hind-brain of a human embryo of three months—viewed from behind and partly from left side.
References
Brainstem
{{Portal bar, Anatomy