Tectum Mesencephali

**Definition:** The dorsal portion or roof of the midbrain which is composed of two pairs of bumps, the INFERIOR COLLICULI and the SUPERIOR COLLICULI. These four colliculi are also called the quadrigeminal bodies (TECTUM MESENCEPHALI). They are centers for sensorimotor integration.

**Tree numbers:** - A08.186.211.132.659.800