KROK 1 2016 – Question 116 · KROK (Medicine) · Physiology
Pupil dilation occurs when a person steps from a light room into a dark one. What reflex causes such a reaction?
- A. Parasympathetic conditioned reflex
- B. Metasympathetic reflex
- C. Sympathetic conditioned reflex
- D. Parasympathetic unconditioned reflex
- E. Sympathetic unconditioned reflex
Hint
Decide which division of the autonomic nervous system drives the muscle that opens the pupil, and whether this response needs any prior learning.
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