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Medical Term:

groove of promontory of labyrinthine wall of tympanic cavity


a narrow branched groove running vertically over the surface of the promontory in the middle ear, lodging the tympanic plexus.

Synonym(s): sulcus promontorii cavitatis tympanicaeTA, sulcus of promontory of tympanic cavity

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.