Multiple Choice
A person struggling with a stressful exam question might experience difficulty focusing her eyes because:
A) she suddenly develops presbyopia.
B) activation of her parasympathetic nerves causes sudden contraction of her ciliary muscles.
C) activation of her sympathetic nerves causes sudden contraction of her ciliary muscles.
D) activation of her parasympathetic nerves inhibits contraction of her ciliary muscles.
E) activation of her sympathetic nerves inhibits contraction of her ciliary muscles.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: Which of the following would NOT be
Q20: Accommodation for near vision requires<br>A)flattening of the lens.<br>B)contraction
Q35: Which of these occurs when light strikes
Q50: Opponent color ganglion cells that respond to
Q71: In the visual pathway providing sensory action
Q73: Which of the following statements regarding hearing
Q78: Which of the following statements regarding vision
Q80: The phenomenon of referred pain may occur
Q81: Vitamin A deficiency can lead to blindness.
Q87: The precision of locating a somatosensory stimulus