how does the increase of blood flow help in cooling down our bodies? On extremely cold days, which part of the body turns pale first? Why?
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shewhoknows
If body temperature rises, blood vessels in the skin dilate, allowing more blood to flow near the skin's surface. This allows heat to dissipate through the skin and into the surrounding air.
Toes, fingers, ears and nose are at greatest risk because these areas do not have major muscles to produce heat.
Answers & Comments
Toes, fingers, ears and nose are at greatest risk because these areas do not have major muscles to produce heat.