part of part of contributes to morphology of sense organ semicircular canal ampulla crista ampullaris The crista ampullaris is the sensory organ of rotation located in the semicircular canal of the inner ear. The function of the crista ampullaris is to sense angular acceleration and deceleration. ampullary crest of semicircular duct ampullary crest FMA:77714 NCIT:C32063 Wikipedia:Crista_ampullaris EMAPA:32791 SCTID:368953000 cristae ampullares MA:0002771 UBERON:0004721