What is the major function of the valves found in human veins?

1 Answer
May 25, 2017

To ensure unidirectional flow of blood towards the heart.

Explanation:

The major function of the valves in human veins is to ensure that blood flows in one direction towards the heart.

This is achieved in two ways.

  1. The valves prevent the reverse flow of blood by closing if blood goes backwards in the vein.
  2. The muscles surrounding the veins compress them, ensuring the blood continues to flow towards the heart.

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