Only veins contain valves. The valves prevent the backward flow of blood.
Valves are in the veins.
Veins
The only blood vessels that contain valves are veins.
Capillaries do not have valves. Veins are the blood vessels with valves.
No arteries do not contain valves since there is enough pressure from the heart to force blood through these vessels without significant backflow between contractions.
Red blood cells are too small to contain blood vessels. They are cells and they travel in blood vessels.
veins, they have valves, the reason why they have them is because blood flow is slow
No. Only venous vessles contain valves.
Right at the very start of the aorta is the aortic valve and at the very start of the pulmonary artery is the pulmonart valve, each of which are semilunar. In the heart there are two semilunar valves that lad to blood vessels. The pulmonary semilunar valve leads to the pulmonary trunk, and the Aortic semilunar valve leads to the Aorta.
it does not contain blood vessels
Veins.
capillary blood sugar vs venous blood sdugar