Question

what would happen if valves are absent in the veins?​

Answer 1

Answer:

The main function of the valves in veins is to prevent back flow of blood. ... Blood in veins is under much lower pressure as it is returning to the heart from the various organs and tissues and so has a risk of back flow if the valves are not present to prevent it.

Answer 2

Answer:

The impure blood inside the body will mixup