Homeostatis

Homeostasis is involved in keeping the em remainss internal environment constant. Homeostasis keeps the bodys alive, and it keeps the pH of the body at a certain level so that enzymes dont dehydrate. Blood glucose is kept constant, CO2 levels and O2 levels argon monitored to ensure that plenty oxygen and not too much carbon dioxide are in the blood. The term Homeostasis was first used by stem in the late 1920s. Homeostasis is very important to animals because it allows them to rely on the external environment. A constant internal environment allows a considerable degree of independence and allows animals to live in areas from the frosty to the hot. Many of the mechanisms involved rely on negative feedback. A movement from the set level, like the rise or giving up in body temperature, is detected by receptors. These receptors then pull information to the control centre in the brain which reacts by returning to the original value. The temperature control mechanism. Humans maintain body temperature of 36.5, and of the temperature rises too high, the resulting increase in blood temperature is detected by receptors in the hypothalamus in the brain.



The heat loss centre similarly sends impulses to arteries and sweat glands which eventually results in a fall in temperature to cool our body down, cold conditions are detected by receptors in the skin. Hunger is an important homeostatic function as it tells us when to eat and when to stop eating. The role of the m asideh in hunger was studied Spiegel in 1973. He asked a group of people to swallow a tube that delivered food directly to the stomach, the intake was established so that it maintained body weight but the meals werent satisfying, the people wanted to taste and muckle the food. This let him know that the taste and sensation of the food in the mouth are important in the regulation of meal size but not essential features. Another psyche tried this by feeding rats. Everything that the rat ate was passed out of the esophagus through a...If you want to get a secure essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper