The autonomic nervous system controls all of the following activities except:
Correct answer: D. Thought
- A. Digestion of food
- B. Heart beat
- C. Contraction of the pupil of the eye
- D. Thought
- E. Breathing rate
Explanation
Thought is a conscious action, so it is not controlled by the autonomic nervous system rather by the somatic nervous system. The autonomic nervous system regulates certain body processes, such as blood pressure and the rate of breathing. This system works automatically (autonomously), without a person's conscious effort.
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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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