Semicircular Ducts
Synonyms
Ampullari, Crista
Ampullaris, Crista
Ampullary Crest
Ampullary Crests
Crest, Ampullary
Crests, Ampullary
Crista Ampullari
Crista Ampullaris
Duct, Semicircular
Ducts, Semicircular
Semicircular Duct
The three membranous semicircular ducts within the bony semicircular canals. They open into the UTRICLE through five openings. Each duct has at one end a sensory area called the ampullary crest. AMPULLARY HAIR CELLS of the crests sense the movement of ENDOLYMPH resulting from rotation of the head.