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Question
The sense of equilibrium by ear is the function of
Options:
A .  Sensory crista of the ampulla
B .  Sensory cells of the organ of corti
C .  Membrane of cochlea
D .  Outer membrane of cochlea
Answer: Option A
:
A
The inner ear also contains a complex system called vestibular apparatus, located above the cochlea. The vestibular apparatus is composed of three semi-circular canals.The base of canals is swollen and is called ampulla, which contains a projecting ridge called crista ampullaris which has hair cells. The saccule and utricle contain a projecting ridge called macula. The crista and macula are the specific receptors of the vestibular apparatus responsible for maintenance of balance of the body and posture.

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