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cupula

cupula A cupula is a wedge-shaped gelatinous structure in the ampulla of each semicircular duct.

A cupula is a wedge-shaped gelatinous structure in the ampulla of each semicircular duct. The stereocilia of nearby sensory hair cells are embedded in it, allowing movement of endolymph during head rotation to be detected for balance.

Also see

Sources

Drafting source: U.S. National Library of Medicine. Medical Subject Headings (MeSH), 2026 descriptor edition. “Hair Cells, Ampulla” (D054777).
public-domain-US-government · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: f4339837e5ce728d59229737271179cfc45f7c4c2318205c617937116f54440b

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “cupula.” Development preview.

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