part of part of in taxon contributes to morphology of Tetrapoda Caudata Eutheria pretectal region olivary pretectal nucleus nucleus praetectalis olivaris UMLS:C0175359 nucleus olivaris colliculi superioris (Fuse) 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. nucleus praetectalis anterior Wikipedia:Olivary_pretectal_nucleus nucleus olivaris mesencephali BAMS:OPt BM:MB-Tec-OPT MBA:706 HBA:9086 nucleus olivaris pretectalis of Fuse nucleus olivaris corporis quadrigemini anterioris BAMS:APT olivary nucleus of superior colliculus pretectal olivary nucleus BAMS:OP neuronames:472 DHBA:12186 nucleus pretectalis anterior BAMS:APN B&H states this present in urodeles; modify definition EMAPA:37921 BAMS:OPT DMBA:16589 UBERON:0002565 anterior pretectal nucleus BIRNLEX:1037 FMA:72405 nucleus of posterior commissure nucleus of optic tract posterior pretectal nucleus nucleus of midbrain tectum pretectal nucleus