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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ALL You Have Viewed Too Many Free Essays, Term Papers, and Book Reports. PAIN PAIN Pain is an unpleasant sensory and the emotional experience associated with actual or potential tissue damage. It alerts us to danger and tells us when something is wrong within our bodies. If danger is acute the body may react even before the brain is aware of the danger. For example the reflex action of jumping away from a sharp object or something hot prevents us from being cut or burned. It is only after we have jumped away that we become aware of a our actions (Baines 1998). Unlike other sensations, the perceptive sensation of pain can be influenced by other past or present experiences, for example, heightened pain perception accompanying fear of needles, or lowered pain perception in an injured athlete during a competitive event (Sherwood, 1995). There are three categories of pain receptors: 1) Mechanical nociceptors which respond to mechanical damage such as pinching or cutting. 2) Thermal nociceptors which respond to temperature extremes. 3) Polymodal nociceptors which respond equally to all kinds of damaging stimuli (Sherwood, 1995). These nociceptors do not have specialized receptor structures, they are all naked nerve endings. Due to their value in survival nociceptors do not adapt to sustained or repetitive stimulation. pain, nociceptors, chronic, 2000, spinal, injury, cord, system, nerve, stimulation, receptors, fibers, slavkin, brain, acute, 1995, perception, nervous, cells, believed, site, signals, signal, relief, pathway, neurons, message, include, gate, drugs, cause, body, stimuli, slavking, skin Word Count: 2045 Acceptance_Essays American_History Anatomy_&_Physiology Animal_Science_&_Zoology Anthropology Architecture Art Astronomy Aviation Biographies Book_Reports Business Computers Creative_Writing Current_Events Economics Education Engineering English Environmental_Science Ethics European_History Film_&_TV Foreign_Languages Geography Government_&_Politics Health_&_Beauty History_Other Human_Sexuality Legal_Issues Marketing Mathematics Medicine Miscellaneous Music Mythology Philosophy Physics Poetry Political_Science Psychology Religion Science Shakespeare Social_Issues Sociology Speech Sports_&_Recreation Supernatural Technology Theater Theses_&_Dissertations

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