Which of the following is true regarding the autonomic nervous system?
a) its denervation would cause hypersensitivity.
b) it usually controls conscious actions.
c) it has no ganglia along its nerves.
d) it uses the neurotransmitter acetylcholine exclusively.
e) it controls skeletal muscle contraction.

Answer:

(A) Its denervation would cause hypersensitivity.

This statement is true regarding the autonomic nervous system

Explanation:

“Autonomic Nervous system” is the part of "nervous system" responsible for functions which are not directed consciously like breathing, digestive processes and beating of heart. These are carried out without conscious effort by the human.

The "autonomic nervous system" controls "smooth muscle" in the 'walls' of aorta, cardiac muscle and the exocrine glands. It is different from the “somatic” efferent nervous system, which streams "skeletal muscle" in the rectus abdominis. “Denervation” is the loss of nerve supply. In case of “Autonomic Nervous system”, the denervated effected organ becomes hypersensitive.

9) a & b

10) true.

11) false.

12) false.

13) true.

14) false.

15) true.

16) true.

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