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saw5 [17]
4 years ago
13

Summarize the factors that enable blood in your leg veins to return to rn heart in spite of the downward pull of gravity.

Health
1 answer:
NikAS [45]4 years ago
8 0
<span>Veins are located near skeletal muscles so as you move, the contraction of those muscles push the blood along. Larger veins have valves in them so blood can't flow backwards.Breathing exerts pressure on the veins in the chest and force blood to heart. I really hope that this helped :D</span>
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