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