Which of the following is NOT true of the photopupillary reflex?

A. It occurs when a person suddenly enters an area with brighter lighting conditions.
B. It involves contraction of the circular muscles of the iris.
C. The response is controlled by the parasympathetic division of the autonomic nervous system.
D. The response is a decrease in the size of the pupil.
E. All of these are true of the photopupillary reflex.


Answer: E

Anatomy & Physiology

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