title: Histological observations on the ependyma of the ventriculus mesencephali in the guinea pig.
abstract: The ventriculus mesencephali is localized in front of the cerebellum and forms a recessus of the dorsal wall of the aquaeductus mesencephali. The ependyma was found one-layered; in some places clusters of cubic or cylindrical ependymal cells occur. Some cells show basal processes. Supra-ependymally there are homogeneous globules and intraventricular nerve fibres. The occurrence of different types of ependymal cells indicates a morphological variability of ependyma even within this small part of the ventricle system of the brain.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D004805:Ependyma / Q000166:cytology* / Q000648:ultrastructure; D006168:Guinea Pigs / Q000033:anatomy & histology*; D008297:Male; D008636:Mesencephalon / Q000166:cytology* / Q000648:ultrastructure; D008854:Microscopy, Electron; D009412:Nerve Fibers / Q000648:ultrastructure