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Question

Sympathetic neural system

A
increases heart rate
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B
increases secretion of saliva and digestive juices
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C
activates adrenal gland to meet an emergency
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D
both a and c
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Solution

The correct option is D both a and c
Sympathetic nervous system is a division of the autonomic nervous system.
Various functions of sympathetic nervous system are:
- It increases heart beat and blood pressure.
- It activates the adrenal glands to meet an emergency.
- It reduces the secretion of saliva and digestive juices.
- It helps in relaxation of urinary bladder.
- It increases the secretion of sweat glands.
- It plays a major role in dilation of pupil.
- It temporarily decreases peristalsis.
- It constricts peripheral blood vessels.

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