HLSC 2P49 Lecture Notes - Lecture 9: Action Potential, Posterior Grey Column, Proenkephalin
17 Feb 2017
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Document Summary
Pain serves a vital function: serves as a sign of (or threat of) injury. Ex: people with no pain: congenital insensitivity to pain, only feel itching/tingling when there is severe injury to the body, may die sooner than others. Pain is a subjective discomfort, usually involving tissue damage. It is not just physical, there is an important subjective psychological component as well: ex: pain is perceived differently under different circumstances. Noted similar injuries with different pain experiences. War injury and surgeries: soldiers felt less pain, even though they had severe injuries, only 32% of soldiers wanted medication. Civilians with similar injuries or surgeries 83% wanted medication. )njury different (cid:498)meaning(cid:499) for soldiers this lead to the pain being less severe: injury on the battlefield often meant the end of the war, and end of trauma, injury represented something positive. Common health experience and therefore is important to understand: ex: it is the most important reason people seek health care.
