Vena Cava has valves, if im not wrong, but pulmonary veins definitely do not have valves.
Veins have valves so the blood dosent backflow
Capillaries do not have valves. Veins are the blood vessels with valves.
The veins have valves in them
no
veins have valves because they bring blood from the bottom half of your body and valves stop the back flow of blood since the veins work against gravity.
valves
valves
Veins. Veins are blood vessels that carry blood from tissues and organs back to the heart; they have thin walls and one-way valves.
valves in the veins
Veins have one way valves because the pressure in veins is lower than that in arteries, and the valves prevent backflow that could be caused by gravity or muscle flexure.
They are called valves, or leaflet valves in the veins, that interlock to prevent backflow of the blood.