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9 October, 04:11

Explain why a superficial skin scrape (such as a paper cut) doesn't blood. why don't you bleed when a hair is pulled out?

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  1. 9 October, 08:10
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    Basically because your skin has several layers to it (see link, below), and the layer that has the blood vessels capable of bleeding in it is further down than a superficial scrape would affect.
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