25). Night blindness is most commonly caused by A. damage to the cornea. B. dama

Question

25). Night blindness is most commonly caused by

A. damage to the cornea.

B. damage to the optic nerve.

C. an improper diet.

D. a toxic effect of vitamin A.

26). Floaters that cast shadows on the visual receptors are usually located within the

A. vitreous humor.

B. aqueous humor.

C. lens.

D. cornea.

27). The auditory ossicles are located within the inner ear.
True False

28). Pain sensations arising from visceral organs may be caused by the stretching of tissues.
True False

29). The utricle and saccule contain the sensory receptors associated with the sense of dynamic equilibrium.
True False

Explanation / Answer

25). Night blindness is most commonly caused by

A. damage to the cornea.

B. damage to the optic nerve.

C. an improper diet.

D. a toxic effect of vitamin A.

26). Floaters that cast shadows on the visual receptors are usually located within the

A. vitreous humor.

B. aqueous humor.

C. lens.

D. cornea.

27). The auditory ossicles are located within the inner ear.
True False

28). Pain sensations arising from visceral organs may be caused by the stretching of tissues.
True False

29). The utricle and saccule contain the sensory receptors associated with the sense of dynamic equilibrium.
True False

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