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groove of promontory of labyrinthine wall of tympanic cavity


Definition: 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

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.