Lateral ventricles located behind this thin membrane
Thalamus forms the walls and hypothalamus forms the floor of the 3rd ventricle
Located in midbrain; carries CSF from 3rd ventricle to 4th ventricle
Opening for CSF to subarachnoid space or central canal of spinal cord
Triangular area
in front of cerebellum
Centers for auditory and visual reflexes
of head