The crista ampullaris is the sensory organ of rotation. They are found in the ampullae of each of the semicircular canals of the inner ear, meaning that there are three pairs in total. The function of the crista ampullaris is to sense angular acceleration and deceleration.

The ampullary cupula, or cupula, is a structure in the vestibular system, providing the sense of spatial orientation. The cupula is located within the ampullae of each of the three semicircular canals. Part of the crista ampullaris, the cupula has embedded within it hair cells that have several stereocilia associated with each kinocilium.

an elevation on the inner surface of the ampulla of each semicircular duct; filaments of the vestibular nerve pass through the crista to reach hair cells on its surface; the hair cells are capped by the cupula, a gelatinous protein-polysaccharide …

Anterior ampullary crest is a raised ridge-like layer of cells situated within the membranous wall of the ampulla of anterior semicircular duct. A gelatinous substance, called the cupula, sits on top of the apex of anterior ampullary crest. Numerous sensory hair cells can be found, interspersed between the crest cells.

Within the ampulla is the sensory epithelium, the crista ampullaris, composed of a mound of supportive tissue, blood vessels, hair cells, and eighth cranial nerve fibers.

Within semicircular canals, an enlarged region called the ampulla holds hair cells that are able to respond to rotational movement. These cells have stereocilia, or action-based protrusions required for hearing and balance, that project outward into a gel called the cupula.

…ridge of tissue called the crista, the sensory end organ that extends across it from side to side. The crista is covered by neuroepithelium, with hair cells and supporting cells. From this ridge rises a gelatinous structure, the cupula, which extends to …

Jun 4, 2007 · Crista ampullaris refers to a structure located at one end of each membranous semicircular duct in the inner ear. It consists of a gelatinous cupula that responds to fluid movement, stimulating vestibular neurons involved in dynamic equilibrium.

The ampullary cupula is a gelatinous body overhanging the hair cells of the ampullary crests of the semicircular ducts; sensory hair cells are immersed in it and movement of endolymphatic fluid causes the cupula to move across the hair cells of the ampullary crest.

We also show that TBX1 is expressed in sensory cells of the crista ampullaris, which may relate to the semicircular canal abnormalities observed in mutant mice.