Autonomic Nervous System (ANS):
Autonomic nervous system controls and co-ordinates the various activities of visceral organs.
Hence it is also called visceral nervous system. Actually ANS is not autonomous or independent
because it is regulated by higher nerve centre of brain. It consists of two antagonistic (opposite in
function) system.
It acts unconsciously to great extent and regulates bodily functions such as the heart rate, digestion,
respiratory rate, pupillary response, urination, and sexual arousal.
It has two main divisions- sympathetic and parasympathetic nervous system.
greg delong
(Greg DeLong)
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