Homeostatic
Homeostasis
Homeostasis is defined as maintaining a constant internal environment. These conditions include water content, ion content, body temperature and blood glucose concentration. The brain is the centre that monitors and controls the body temperature. The blood glucose concentration is concentrated by the pancreas, which produces a hormone known as the insulin; this hormone is able to reduce the blood glucose levels. If there is not enough produced then the disease diabetes is developed.
Negative feedback mechanisms:
‘a body system that monitors a system output, that shuts off once an optimum output level is achieved and turns on if the output level dropped below optimum’ (reference: Walsh, 2010)For example if the body temperature is too hot then it will cool down, and if the body temperature is too cold then it would warm up. An example is ‘Hormone levels decrease so the body stimulates the organ to produce more. At a certain level, the body recognizes that there is too much and pulls back production (the negative feedback).’ (reference: http://answers.yahoo.com/question/index?qid=20090420140027AArF0f3) the brain and nervous system are very important in the process in homeostasis mechanisms . if a person has not eaten for 7 hours they will start to feel cold and tired, the nervous system and brain will detect this and after a warm meal, it will give you energy. There are many negative feedback systems which require: ‘receptors to detect change, a control centre to receive the information and process the response and effectors to reverse the change and re-establish the original state’ (Reference: Albworth et al, 2010).
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Describe the mechanisms of temperature control:
All enzymes work best at the body temperature which is around 37 degrees. If the body temperature increases or decrease enzymes will not work properly or may even denature. In the brain there is a “thermoregulatory” will acts like the body’s thermometer, so
Homeostasis is defined as maintaining a constant internal environment. These conditions include water content, ion content, body temperature and blood glucose concentration. The brain is the centre that monitors and controls the body temperature. The blood glucose concentration is concentrated by the pancreas, which produces a hormone known as the insulin; this hormone is able to reduce the blood glucose levels. If there is not enough produced then the disease diabetes is developed.
Negative feedback mechanisms:
‘a body system that monitors a system output, that shuts off once an optimum output level is achieved and turns on if the output level dropped below optimum’ (reference: Walsh, 2010)For example if the body temperature is too hot then it will cool down, and if the body temperature is too cold then it would warm up. An example is ‘Hormone levels decrease so the body stimulates the organ to produce more. At a certain level, the body recognizes that there is too much and pulls back production (the negative feedback).’ (reference: http://answers.yahoo.com/question/index?qid=20090420140027AArF0f3) the brain and nervous system are very important in the process in homeostasis mechanisms . if a person has not eaten for 7 hours they will start to feel cold and tired, the nervous system and brain will detect this and after a warm meal, it will give you energy. There are many negative feedback systems which require: ‘receptors to detect change, a control centre to receive the information and process the response and effectors to reverse the change and re-establish the original state’ (Reference: Albworth et al, 2010).
0
Describe the mechanisms of temperature control:
All enzymes work best at the body temperature which is around 37 degrees. If the body temperature increases or decrease enzymes will not work properly or may even denature. In the brain there is a “thermoregulatory” will acts like the body’s thermometer, so