Artistically rendered 3D magnetic resonance imaging (MRI) showing virtual ventriculoscopy with visualization of the roof and posterior wall of the human third ventricle.
Between the thalami rendered in rainbow colors, the paired internal cerebral veins at the roof of the third ventricle resemble a pair of tuning fork. The base of the tuning fork is made up of the Habenular commissure, the pineal recess and the posterior commissure forming the posterior wall of the third ventricle. The cerebral aqueduct can be seen immediately below the colorful band-shaped posterior commissure.