madam, you hv explained to us diencephalon

Asked by zrajani | 29th May, 2010, 12:29: PM

Expert Answer:

The hypothalamus functions as a type of thermostat for the body. It sets a desired body temperature, and stimulates either heat production and retention to raise the blood temperature to a higher setting, or sweating and vasodilation to cool the blood to a lower temperature. All fevers result from a raised setting in the hypothalamus; elevated body temperatures due to any other cause are classified as hyperthermia. Rarely, direct damage to the hypothalamus, such as from a stroke, will cause a fever; this is sometimes called a hypothalamic fever. However, it is more common for such damage to cause abnormally low body temperatures.

A fever is one of the body's immune responses that attempt to neutralize a bacterial or viral infection. A fever can be caused by many different conditions ranging from benign to potentially serious. Fever differs from uncontrolled hyperthermia, usually just referred to as hyperthermia, in that hyperthermia is an increase in body temperature over the body's thermoregulatory set-point, due to excessive heat production and/or insufficient thermoregulation.

Answered by  | 30th May, 2010, 01:05: PM

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