Olivary pretectal nucleus

System Nervous

Olivary pretectal nucleus

Definition

Small distinct nucleus in the pretectum of mammals involved in the pupillary light reflect. In rats, it is an olive shaped (anterior) nucleus lying ventral to the brachium of the superior colliculus (Paxinos, The rat nervous system, 2nd ed, 1995, pg. 862). Physiologically, it is identified by neurons sensitive to luminance changes.

Also known as nucleus praetectalis olivaris, olivary nucleus of superior colliculus, pretectal olivary nucleus — per UBERON

The Olivary pretectal nucleus is a part of the Nervous.

Also identified as