Question

Movement of the body upwards in an elevator will cause what effect on the otolith organs:...

Movement of the body upwards in an elevator will cause what effect on the otolith organs:

A)

Depolarization of the saccule, hyperpolarization of the utricle
B)

Depolarization of the utricle, hyperpolarization of the saccule
C)

Depolarization and hyperpolarization of some cells in both the utricle and saccule
D)

No effect on the otolith organs
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The otoliths organs is composed of a combination of a gelatinous matrix and calcium carbonate in the viscous fluid of the saccule and utricle. The inertia of these small particles causes them to stimulate hair cells when the head moves due to change in vertical and horizontal orientation of the body. The stimulated Hair cells send signals down sensory nerve fibers, which are interpreted by the brain as motion. while the saccule are predominantly involved in vertical motion, the utricules is also stimulated in the movements such as those caused by an elevator. This depolarisation and. Hypolarisation of the saccule and utricle allowes the brain to discriminate a tilted head from movement of the entire body

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