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How does heat exchange occur across the walls of capillaries? Specifically, how are certain veins/arteries/capillaries cooler...

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Medical Sciences

How does heat exchange occur across the walls of capillaries?Specifically, how are certain veins/arteries/capillaries cooler orwarmer than other ones? How does the body regulate that to makecertain parts hotter or cooler?

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4.3 Ratings (753 Votes)
Heat exchange across the walls of capillaries and also other blood vessels occurs for a conformation of homeostasis Occurs via a single vessel two vessels in counterflow and a single vessel near the skin surface For a single vessel the Graetz number is the controlling parameter The arterioles capillaries and venules have very low Graetz numbers Gz 04 and act as perfect heat exchangers    See Answer
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