Mydriasis
A)refers to pupillary dilation.
B)is a response to muscarinic activation.
C)occurs when the circular muscle of the iris constricts.
D)reduces the amount of light that enters the eye.

Question

Quizplus · Accepted Answer

Mydriasis refers to pupillary dilation, which means the pupil becomes wider and allows more light to enter the eye. This is opposite to miosis, which refers to constriction of the pupil. Mydriasis is often caused by sympathetic nervous system activation or certain drugs, such as adrenaline or atropine.