Which of the following responses are regulated by the sympathetic nervous system?
1. Increased heart rate, bronchial constriction
2. Peripheral artery dilation, reduced peristalsis
3. Increased secretions, sex organ stimulation
4. Relaxation of bladder, pupil dilation
Correct Answer: 4
Rationale: Relaxation of the bladder and pupil dilation is regulated by the sympathetic nervous system.
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