Select the correct statement about equilibrium.
A) Hair cells involved in both static and dynamic equilibrium hyperpolarize only, resulting in an increased rate of impulse transmission.
B) The weight of the endolymph contained within the semicircular canals against the maculae is responsible for static equilibrium.
C) Cristae respond to angular acceleration and deceleration.
D) Due to dynamic equilibrium, movement can be perceived if rotation of the body continues at a constant rate.

Question

Quizplus · Accepted Answer

Cristae are sensory receptors in the semicircular canals that respond to changes in angular acceleration and deceleration, making statement C the correct one. Statement A is incorrect because hair cells involved in dynamic equilibrium depolarize and hyperpolarize in response to changes in movement, not only hyperpolarize. Statement B is incorrect because static equilibrium is maintained by the otolithic organs (utricle and saccule) that detect the position of the head relative to gravity, not by the weight of the endolymph in the semicircular canals. Statement D is also incorrect because dynamic equilibrium allows us to perceive changes in acceleration or deceleration, not constant movement.

Select the Correct Statement About Equilibrium