Skip to Content

pretectal nuclei

 

Definition: group of cells, constituting several subnuclei, located rostral to the superior colliculus in the “pretectal” area; these cells receive input from retinal ganglion cells (via the optic tract) and project bilaterally to the Edinger-Westphal nucleus; they serve as a relay center for the pupillary light reflex pathway. The group consists of the nucleus pretectalis anterior [TA] (anterior pretectal nucleus [TA]), nucleus pretectalis olivaris [TA] (olivary pretectal nucleus [TA]), and nucleus pretectalis posterior [TA] (posterior pretectal nucleus [TA]). The nucleus tractus optici [TA] (nucleus of optic tract) is also usually grouped as one of the pretectal nuclei.

Synonym(s): nuclei pretectalesTA

Disclaimer: This site is designed to offer information for general educational purposes only. The health information furnished on this site and the interactive responses are not intended to be professional advice and are not intended to replace personal consultation with a qualified physician, pharmacist, or other healthcare professional. You must always seek the advice of a professional for questions related to a disease, disease symptoms, and appropriate therapeutic treatments.
© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
Hide