The chambers at the base of the semicircular canal are called the:

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The chambers at the base of the semicircular canal are called the utricle and saccule. These chambers contain sensory hair cells and otoliths (small crystals made of calcium carbonate) that sense changes in acceleration and head position. The ampulla and cupula refer to structures found within the semicircular canals themselves, while the otolith and ampulla refer to structures within the utricle and saccule chambers. The crista is a structure found within the ampulla, but is not a chamber at the base of a semicircular canal.

The Chambers at the Base of the Semicircular Canal Are