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Discuss the function and importance of the autonomic nervous system

Discuss the function and importance of the autonomic nervous system

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Answer. Beside central and peripheral nervous system, autonomic nervous system is also a part of nervous system in our body.

The main function of ANS or autonomic nervous system is to maintain homeostasis in our body. ANS basically regulates the activity of smooth muscles, cardiac muscles.

ANS includes the sympathetic and the parasympathetic nervous system.

The sympathetic nervous system helps in : increasing the heart rate at the time of flight, fight and the fright by vasoconstricting the blood vessels.

The parasympathetic helps in the decreasing the heart rate and bringing brochoconstriction in the lungs.

Their activity is under the control of the adrenaline and the nor adrenaline hormone that are secreted by the adrenal medulla endocrine gland.

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