has part has part has_part characteristic of has modifier abnormal membranous labyrinth morphology abnormal vestibular labyrinth morphology MP:0004427 abnormal labyrinthus vestibularis MPheno.ontology any structural anomaly in the portion of the membranous labyrinth concerned with the sense of equilibration (vs. the cochlear labyrinth, which is concerned with the sense of hearing) and innervated by the vestibular nerve; it is located within the semicircular canals and vestibule of the bony labyrinth, and consists of the utricle, saccule, and the semicircular, utriculosaccular, and endolymphatic ducts abnormal vestibular organ morphology quality abnormal vestibular labyrinth