Which one of the following is an example of the action of the autonomous nervous system?
Correct answer: C. Peristalsis of intestine
- A. Swallowing of food
- B. Pupillary reflex
- C. Peristalsis of intestine
- D. Knee-jerk response
Explanation
The autonomic nervous system controls peristalsis via the mesenteric plexus sympathetic fibers decrease, and parasympathetic fibers increase intestinal movements.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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