Hair Cells, Ampulla

Sensory cells in the ampullary crest of each of the semicircular ducts, with their apical STEREOCILIA embedded in a wedge-shaped gelatinous cupula. These hair cells sense the movement of ENDOLYMPH resulting from angular acceleration of the head, and send signals via the VESTIBULAR NERVE to the brain to maintain balance.

Year introduced: 2008

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Tree Number(s): A09.246.300.663.500.500, A09.923.125.500

MeSH Unique ID: D054777

Entry Terms:

• Ampulla Hair Cell
• Ampulla Hair Cells
• Hair Cell, Ampulla
• Ampullary Hair Cells
• Ampullary Hair Cell
• Hair Cell, Ampullary
• Hair Cells, Ampullary

Previous Indexing:

• Semicircular Canals (1976-2007)
• Vestibular Labyrinth (1978-2007)

See Also:

• Stereocilia

All MeSH Categories
Anatomy Category
Sense Organs
Ear
Ear, Inner
Semicircular Canals
Semicircular Ducts
Hair Cells, Ampulla

All MeSH Categories
Anatomy Category
Sense Organs
Vestibular System
Semicircular Ducts
Hair Cells, Ampulla