The<unk>  (cella) of the<unk>  ventricle extends from the interventricular foramen to the splenium of the corpus callosum.
It is an irregularly curved cavity, triangular on transverse section, with a roof, a floor, and a medial wall.
The roof is formed by the under surface of the corpus callosum; the floor by the following parts, enumerated in their order of position, from before backward: the caudate nucleus of the corpus striatum, the stria terminalis and the terminal vein, the<unk>  portion of the upper surface of the thalamus, the choroid plexus, and the<unk>  part of the fornix; the medial wall is the posterior part of the septum pellucidum, which separates it from the opposite ventricle.
Body of lateral ventricle
Anterior horn of lateral ventricle
Vallecula of cerebellum
Uvula of cerebellum
Inferior horn of lateral ventricle
Posterior lobe of cerebellum
Lingula of cerebellum
Anterior lobe of cerebellum