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Of the body the function of the pns is to direct

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of the body. The function of the PNS is to direct information to and from the brain and spinalcord. It also carries out the commands of the CNS. The PNS is comprised of thesomaticnervous systemand theautonomic nervous system.The function of the somatic nervoussystem is to convey information from the skin and muscles to the CNS. It regulates informationsuch as signals about pain and temperature. The autonomic nervous system’s function is to takemessages to and from the body’s internal organs, thus regulating breathing, heart rate, anddigestion. The autonomic nervous system is comprised of both thesympathetic nervoussystemand theparasympathetic nervous system.The sympathetic nervous system prepares aperson for a stressful situation; the parasympathetic nervous system calms the body down afterthe stressful situation.Stressis the response of individuals tostressors,circumstances, or eventsthat threaten an individual’s well-being.When a person experiences stress, physiological changes take place, such as sweating and anelevated heartbeat. When a person is exposed to a stressful situation this activates theirsympathetic nervous system (the fight or flight response).Acute stress, the momentary stressresponse, ends with the ceasing of the stressful event.Chronic stressis stress that occurscontinuously. In this type of stress the nervous system sends outcorticosteroids(stresshormones) that can wear down the immune system.2. NeuronsNeuronsare the nerve cells that control the information-processing function.Mirrorneuronsplay a role in imitation. They are activated when we perform an action or observe othersin action. These neurons are implicated in empathy and understanding others.Glial cellsprovidesupport and nutrition to the nervous system.A. Specialized Cell Structures

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