vestibular sacs

two sacs in the inner ear—the utricle and saccule—that, together with the semicircular canals, comprise the vestibular apparatus (see also vestibular system). The vestibular sacs respond both to gravity to encode information about the head’s orientation and to linear acceleration.

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Psychology term of the day

July 27th 2024

vital functions

functions of the body (e.g., respiration, blood circulation of the blood) that are necessary to sustain life. Many vital functions are controlled by the brainstem.