midbrain

Definition

A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion).

Etymology

From mid- + brain.

Example Sentences

• "When the instinctive and subconscious world of the snake is confronted in initiation, the vital force of the snake rises and floods the second brain, the midbrain, the limbic ring."