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Question

The main functions of sympathetic nervous system are _______________________.


A

contraction of skin, blood vessels and increase in BP

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B

contraction of muscles secretion of sweat glands and rapid coagulation

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C

dilation of bronchi and contraction of heart

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D

All the above

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Solution

The correct options are
A

contraction of skin, blood vessels and increase in BP


B

contraction of muscles secretion of sweat glands and rapid coagulation


C

dilation of bronchi and contraction of heart


The main functions of the sympathetic nervous system are the contraction of most blood vessels, thereby increasing the blood pressure, contraction of muscles, activation of sweat glands and rapid blood coagulation, dilation of bronchi and contraction of the heart. Digestion is however decreased as peristalsis, the wave-like motion of the alimentary canal, which pushes the semi-digested or undigested food down the canal, is inhibited. All of these prepares the body to face emergency situations.


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