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What functions of the nervous system enable the body to respond quickly?

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The fastest response from the nervous system is from the autonomic system which is involuntary. Heartbeat and reflex movement come from this system which is out of your conscious control. It is centered in the cerebellum and spinal cord. Impulses from your sense organs (a bad smell or a knock to the knee) travel to your spinal cord or cerebellum -- whichever is closest to the stimulus -- and a response (coughing or knee-jerk) travels back to the area to provoke an appropriate reponse. Some voluntary responses can become involuntary responses, such as riding a bicycle. When learning how to balance, the actions are learned over and over until they become automatic. Some involuntary actions can be controlled voluntarily, such as holding your breath or a yogi who can slow his heartrate.
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The Nervous System how does it make our body function and does it even sleep when we are?

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What is the function of the autonomic nervous system?

The function of the autonomic nervous system is to control  involuntary actions, or body functions that must operate even  without conscious awareness of those functions. It

Wha is the function of nervous system?

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Feel pressure and heat, and provide feedback to the brain concerning the body (the nervous system also sends a signal to our brain to limit our muscles from overusing).

What is the function of the nervous system in the human body?

The central nervous system (CNS) and the peripheral nervous system (PNS) work together to monitor, coordinate and control the activities of the whole body. The PNS picks up in

What is the function of the sympathetic nervous system?

If you think of it as "fight or flight" it becomes a lot http://wiki.answers.com/Q/The_functions_of_the_Sympathetic_nervous_system_and_the_parasympathetic_nervous_system# to r