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| The [[Autonomic_Nervous_System|autonomic nervous system ]]is the portion of the nervous system that regulates and controls visceral functions such as heart rate, temperature regulation during [[Homeostasis|homeostasis]], digestion and blood pressure. Although the autonomic nervous system is a functionally distinct system of its own it is composed of the central nevous system and the peripheral nervous system, the autonomic nervous system carries nerve impulses to glands, [[Muscle|smooth muscle ]]and [[muscle|cardiac muscle ]]and is under involuntary, subconcious control. Visceral sub concious control is achieved by reflex arcs which is a nerve pathway in the body taken by an action potential that leads to a rapid involuntary respoonse to a stimulus. The autonomic nervous system can be further sub divided into the sympathetic nervous system which stimulates effectors and so speeds up any activity, it acts like an emergency controller so helps the body cope with essful situations by heightening our awareness and preparing us for activity (fight or flight response). Also divided into the parasympathetic nervous system which inhibits effectors and so slows down any activity, it controls activities under normal resting conditions. <br>
| | See [[Autonomic_Nervous_System|Autonomic Nervous System]] |
Latest revision as of 13:24, 29 November 2011