ampulla of semicircular canal

anatomy

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In human ear: Semicircular canals
…has an expanded end, the ampulla, which opens into the vestibule. The ampullae of the horizontal and superior canals lie close together, just above the oval window, but the ampulla of the posterior canal opens on the opposite side of the vestibule. The other ends of the superior and posterior…
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In semicircular canal: Function
They sense motion via the ampulla, a bulb-shaped structure at the base of each canal. The ampulla contains a fluid known as endolymph, which is also present in the cochlea, and the crista, a cone-shaped structure lined with hair cells and supporting cells. The hair cells form stereocilia, protrusions that…
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