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[–] -4 points 2 years ago (3 children)

If it flows out when the blood moves then it wouldn't accumulate there in the first place. I'm not sure what you're having difficulty with here.

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  • [–] 3 points 2 years ago (2 children)

    It doesn't flow out when the blood moves, because the bloodstream is a closed loop (more or less). It can only flow out if you lose blood.

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