The effects of sympathetic stimulation of the iris are:

A. vasoconstriction
B. relaxation (for far vision)
C. contraction of the circular muscle and pupil constriction
D. contraction of the radial muscle and pupil dilation


d
Rationale: Effects of sympathetic stimulation on the iris include contraction of the radial muscle and pupil dilation (mydria-sis).

Health Professions

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