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In those individuals, Balaban says, further tests implicated damage to the ear's otolith organs, the utricle and the saccule, key to sensing gravity.

The utricle and the saccule also have sensory hair cells that alert your brain when you have changed your position.

In two areas of the inner ear, the saccule and the utricle, are hairlike cells topped with structures called otoliths.

The sacs of the internal ear, known as the utricle and saccule, receive the impulses of the base of the stapes.

In the vestibule we find two sacs, the saccule next to and communicating with the ductus cochlearis, and the utricle communicating with the semicircular canals.