Biology, asked by nk9935539, 11 months ago

blood flows from legs to heart against the gravity through the veins?explain.​

Answers

Answered by satyakhushi0777
4

Explanation:

The valves close when blood starts to flow in one direction, so that blood in the veins can only flow in the direction back to the heart, which is up the legs. ... So it is a combination of blood pressure from the heart's pumping action, the valves, and muscle movement that gets the blood up the legs against gravity.

Answered by Anonymous
4

Explanation:

The valves close when blood starts to flow in one direction, so that blood in the veins can only flow in the direction back to the heart, which is up the legs. ... So it is a combination of blood pressure from the heart's pumping action, the valves, and muscle movement that gets the blood up the legs against gravity.

Hopes u understand...

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