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What is the function of autonomic nervous system?

describe the structure and the functions of the autonomic nervous system
Asked On : Fri, 1 Apr 2011
Answers:  3 Views:  658
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General & Family Physician 's  Response
Hello, welcome to HCM. The autonomic nervous system (ANS or visceral nervous system) is the part of the peripheral nervous system that acts as a control system functioning largely below the level of consciousness, and controls visceral functions. The ANS affects heart rate, digestion, respiration rate, salivation, perspiration, diameter of the pupils, micturition (urination), and sexual arousal. Whereas most of its actions are involuntary, some, such as breathing, work in tandem with the conscious mind. It is classically divided into two subsystems: the parasympathetic nervous system (PSNS) and sympathetic nervous system (SNS). Relatively recently, a third subsystem of neurons that have been named 'non-adrenergic and non-cholinergic' neurons (because they use nitric oxide as a neurotransmitter) have been described and found to be integral in autonomic function, particularly in the gut and the lungs.
Answered: Wed, 31 Aug 2011
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  User's Response
hi welcome to health care magic.see its a very difficult in described here but here i give you brief idea nervous system is made up of brain and spinal cord.there are cranial,spinal,and autonomic nerves.neurone which is made up of nerve cell.there are two type of nerve system sympathetic and parasympathetic.first one pushing and second one relaxing.main function of its to regulate basic viceral control the emotional stress,fear,sexual excitement, also release certain hormone like insulin,glucagon,epinephrin,renin,vasopresin.
Answered: Thu, 28 Jul 2011
General & Family Physician Dr. Vasudha Jayant Athavale's  Response
Autonomic nervous system is part of periferal nervous system. which control visera.
it acts below the concious level &it controls heart rate,respiration, digestion,perspiration,salivation.micturation.sexual arousal etc.
it is made up of two parts -1)sympathatic nervous system : functionis fight & flight ie-arousal &energy production2)parasympathatic nervous system :Function is rest &digest ie.comming to normal.
& autonomic ataxia means symtom caused by imbalance of autonomic nervous system.
Answered: Sun, 14 Aug 2011
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