We are studying the circulatory system in biology and how it helps maintain homeostasis. The teacher mentioned that when you get cold blood rushes to the core of your body to keep your vital organs warm. I then asked why your nose gets red when your cold. Wouldn't a red flesh be the result of excess blood? And I highly doubt that the nose is considered the important enough to rush blood to when your body is trying to keep itself from freezing to death. She was not able to answer this question, and offered extra credit if I found the answer. Could anyone here help me out?
Another question a student asked was why you get a burning sensation in your hands when they get cold for prolonged periods of time. She was not able to answer this either. Anyone know?
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2005-05-05, 09:30 PM
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