Well, pulmonary means lung so consider it the lung circuit so it's mostly to the heart and then to the lung and repeat. Arteries in the pulmonary circuit will carry non oxygenated blood to the lungs and it will go to several stages before the remaining blood goes into the veins which will seperate into smaller vessels which will always connect back to the heart where it enters the atrium so the remaining blood goes again through many stages then repeats.
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To reduce pooling due to gravity.
I don't know what it is. I'm sorry :(
the function of the semilunar valves are that they provied the lungs with glucose and oxygen
Arteries carry blood with oxygen to the heart. Veins carry blood full of carbon dioxide to the lungs. Arteries have a thick wall. Veins have a thin wall. Arteries have no valves. Veins have valves.
Valves in the peripheral veins prevent blood from backflow during the off beat of the heart. If not for the valves, the flow of blood would tend to pool at the extremities.
The valves stop the blood flowing backwards through the circulatory system.
The valves help the blood to go in one direction against gravity up towards the heart and prevent it from reluxing down. In case these valves malfunction varicose veins occur.
One-way valves prevent the back flow of bloodThere are tiny one way valves throughout a vein. These stop blood from flowing backwards. Interestingly, when these valves in veins in the legs malfunction, the result are varicose veins.
the function of the semilunar valves are that they provied the lungs with glucose and oxygen.
The valves help to prevent blood from seeping backwards. They provide a one way valve. When valves begin to fail blood may become stagnant and cause unsightly varicose veins - usually in the legs..
The valves help to prevent blood from seeping backwards. They provide a one way valve. When valves begin to fail blood may become stagnant and cause unsightly varicose veins - usually in the legs..