Otoconia crystals are composed of which mineral?

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Multiple Choice

Otoconia crystals are composed of which mineral?

Explanation:
Otoconia crystals are mineralized calcium carbonate structures in the otolithic membrane over the hair cells of the vestibular apparatus. Their calcium carbonate composition provides the right density for gravity and linear-acceleration sensing: as the head tilts or moves, the heavier crystals shift relative to the hair cells, bending the stereocilia and triggering vestibular signals. The other minerals listed aren’t used to form otoconia in the inner ear, so calcium carbonate is the correct material.

Otoconia crystals are mineralized calcium carbonate structures in the otolithic membrane over the hair cells of the vestibular apparatus. Their calcium carbonate composition provides the right density for gravity and linear-acceleration sensing: as the head tilts or moves, the heavier crystals shift relative to the hair cells, bending the stereocilia and triggering vestibular signals. The other minerals listed aren’t used to form otoconia in the inner ear, so calcium carbonate is the correct material.

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