Question

In which bloob cells have valve and their functions

Answer 1

Heyyyyy!!!! mate.... here's ur answer....

Valves ar found only in veins.
It's main function is to control the flow of blood...
The driving force behind the blood flow in veins is not the heart. It depends on the amount of blood that comes into the veins, and by intermittent pressure from the surrounding muscles. When the pressure from the surrounding muscles is “turned off,” the valves prevent the blood from slipping too far back...

hope it will help u...