Question

what is
the role of
Valves - in viens​

Answer 1

Answer:

The deep veins play a significant role in propelling blood toward the heart. The one-way valves in deep veins prevent blood from flowing backward, and the muscles surrounding the deep veins compress them, helping force the blood toward the heart, just as squeezing a toothpaste tube ejects toothpaste.

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Answer 2

Answer:

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