Question

Which two arteries have valves?

Answer 1

Hint: Arteries are basically blood vessels, which means the network of pathways through which the oxygenated blood is carried away from the heart to various cells, tissues and also organs of the human body. There are three different types of arteries such as elastic arteries, muscular arteries and arterioles.

Complete answer:
Normally, arteries do not possess valves. But two arteries that originate from the right and left ventricles have valves in order to prevent the backflow of blood. These two valves which are aortic and pulmonary are usually regarded as the heart valves. When the left ventricle contracts, the mitral valve is closed and the aortic valve opens, so the blood can flow into the aorta. Valves also help blood travel back to the heart against the gravitational force.

Arteries and veins are two different types of blood vessels in the circulatory system whose main function is to circulate blood throughout the body. However, they are quite different from each other in terms of function.

Arteries carry oxygen-rich blood away from the heart and deliver it to all the body parts whereas the veins carry the deoxygenated blood to the heart. Exceptions are the pulmonary arteries and pulmonary veins.

Note: In comparison to the other blood vessels, arteries have thick walls and are located superficially. This is because arteries carry oxygen-rich blood throughout the body under high pressure. If these blood vessels have thinner walls, they would get damaged, resulting in blood loss caused by the rupture of blood vessels.