Science, asked by dalaamroadionesuma, 1 year ago

When the blood flowing through my veins is in my toe, it has to be moved upwards now. But the pressure in veins due to pumping of heart is not enough to move blood against gravity. So how does the blood go upwards ?

Answers

Answered by lovely26

0

The blood reaches up the body because the veins have valves which prevent the back flow of blood.

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