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If there is a problem in the inner ear, why can a person have difficulty maintaining balance even when the eyes are normal?

Answer and explanation

Correct answer: The inner ear sends body-position signals to the brain

The governing concept is coordination of balance by the vestibular apparatus of the inner ear. The semicircular canals and related structures detect head movement and changes in body orientation, then send signals to the brain. The brain combines these signals with information from the eyes and muscles to maintain posture and equilibrium. If inner-ear signals are faulty, balance can be disturbed despite normal vision. Therefore option A is correct; the other options are unrelated endocrine or plant functions.

Related tags

Inner EarBalanceVestibular SystemControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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