M2 Anatomy and Physiology

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M2 – Discuss the probable homeostasis responses to changes in the internal environment during exercise. Homeostasis is the process by which the internal environment of the body is kept relatively stable despite changes in the environment. Your body is able to adapt to several conditions. For instance, average human body temperature is 37°C, varying slightly for different people. When the temperature outside drops, your body temperature remains the same, proving your body has the ability to regulate its own temperature. Along with temperature, there are many other ways in which your body regulates itself, especially during exercise. Sweating during any exercise is common. Sweat is mostly water with some salt. It is produced by the sweat glands and pours out onto the surface of the skin, the water then evapoarates which removes heat from the skin therefore cooling the skin down. Whenever your body feels a change on the outside, it must account for and adjust functions inside the body in order to maintain its normal state. When you exercise, your muscle tissues demand more oxygen. The body responds to this increased demand by increasing blood flow, which creates higher blood pressure. In order to get more oxygen into your body and into your blood to flow to those muscles, you have to take in more oxygen through breathing. The same process occurs when you sweat. When you exercise, your body’s temperature increases, and in attempt to cool you off, your sweat glands the effectors are activated. Consequently the body temperature increases with exercise, the actual time spent 'producing heat' is actually quite short. when the body is too hot ie the blood vessels leading to the skin capillaries dilate, known as vasodilation. Vasodilation allows lots of blood to flow near the surface and heat is lost through the skin by connection and radiation. The hairs of the body lie
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