Biology, asked by haniatariq149, 7 months ago

how do valves help the transport of blood in veins

Answers

Answered by AzulIvy

Answer:

Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.

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