D2 - Evaluate the Importance of Homeostasis in Maintaining the Healthy Functioning of the Body Essay

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Homeostasis is the capability to preserve an appropriate internal balance while your body adjusts to external factors e.g. temperature change, increase of exercise; so that whatever extreme situation occurs around you whether it be extremely hot or cold your body should be able to continue to function properly without any help. If somebody remains in the cold temperatures for a long period of time, the thermostat homeostasis mechanisms may fail and you could develop hypothermia. Hypothermia is when your body temperature drops beyond below the standard temperature needed for your body to function accurately without any inner body catastrophes. When your body temperature reaches a certain point below the norm, usual actions can't work, including homeostasis. When your body is put in an certain situation for too long your internal environment may begin to shut down, leaving your body vulnerable. Unless immediate action is taken to bring the homeostasis back to normal you will die. The same thing would happen if your body was exposed to extremer heat for any long periods of time. For the metabolic system to continue to occur in the body cells need a constant supply of glucose. Glucose is a carbohydrate, and is the most important simple sugar in human metabolism. Blood sugar levels should be maintained at around 90mg of glucose per 100ml of blood (90:100). If blood glucose levels rise, insulin is released into the blood. Insulin is one of many hormones that helps the body turn the food we eat into energy. Also, insulin helps us store energy that we can use later. After we eat, insulin works by causing sugar (glucose) to go from the blood into our body's cells to make fat, sugar, and protein. When we need more energy between meals, insulin will help us use the fat, sugar, and protein that we have stored. Insulin is produced by our own insulin that is made in

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