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When body temperature rises, the temperature control center in the hypothalamus signals the body to initiate cooling mechanisms. This includes promoting vasodilation, which increases blood flow to the skin, and stimulating sweat glands to produce sweat. The evaporation of sweat from the skin surface helps to dissipate heat, ultimately lowering the body temperature.

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Why is temperature control is regarded as an example of a negative feedback?

Temperature control is an example of negative feedback because the body continually works to maintain a stable internal temperature. When body temperature rises, thermoreceptors signal the brain to trigger mechanisms such as sweating to cool down the body. Conversely, when body temperature drops, thermoreceptors signal for mechanisms like shivering to generate heat and raise the temperature. This feedback loop helps regulate the body's temperature within a narrow range.


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