Autonomic Nervous System is the visceral system of the Peripheral Nervous System. The nerve fibres of ANS are connected with the function of blood vessels, endocrine glands, heart, lungs, stomache, intenstines and bladders, thereby connecting it with all the major body organs.
The ANS has two divisions:
1. Sympathetic
2. Parasympathetic
The Sympathetic division acts in three major events:
a) Excitement, Fear, Anger, Happiness
b) Extreme body workouts
c) Extreme cold temperatures
The emotions are regulated in the sympathetic division by medulla, which pours excess amounts of adrenaline secretion to the blood stream. Adrenaline, also known as epinephrine is responsible for fight or flight response in an individual.This secretion is associated to strong emotional experiences. These changes in chemicals lead to changes in blood pressure and pulse rate too. The stomache undergoes visceral changes during joy and adrenal functions are high during fear and anger.The gall bladder becomes active during sorrow. Electrical responses are also linked with the visceral when these emotions are felt. This energises sweat glands thereby leading to perspiration. When activated the sympathetic nervous system controls the endorcrine glands which is responsible for preparing the body for action.
Parasympathetic division maintains the ordinary vital ions of life helping in day to day functions of life. This division aims at meeting the physiological demands of the body. This division is more relaxed and it stores up energy for the body to use in future.
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