When examining a patient's eyes, what should the nurse be aware that stimulation of the sympathetic branch of the autonomic nervous system causes?

Question

Quizplus · Accepted Answer

Stimulation of the sympathetic branch of the autonomic nervous system dilates the pupil and elevates the eyelid. Parasympathetic nervous system stimulation causes the pupil to constrict. The muscle fibers of the iris contract the pupil in bright light to accommodate for near vision. The ciliary body controls the thickness of the lens. Parasympathetic nervous system stimulation, not sympathetic nervous system, causes the pupil to constrict. The muscle fibers of the iris contract the pupil in bright light to accommodate for near vision, not sympathetic nervous system stimulation.

When Examining a Patient's Eyes, What Should the Nurse Be