|Brain: Optic recess|
|The hypophysis cerebri, in position. Shown in sagittal section. (Optic recess labeled at upper right.)|
|Median sagittal section of brain. The relations of the pia mater are indicated by the red color. (Optic recess labeled at lower left.)|
|Gray's||subject #189 816|
At the junction of the floor and anterior wall of the third ventricle, immediately above the optic chiasma, the ventricle presents a small angular recess or diverticulum, the optic recess (or supraoptic recess).
Drawing of a cast of the ventricular cavities, viewed from the side.