What is the structure and function of the blood vessels?

It is returned to the heart in the veins. The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and the cells across their walls….Structure and function of blood vessels.

What is the basic structure of a blood vessel?

It consists of circularly arranged elastic fibers, connective tissue, and smooth muscle cells. The inner layer ( tunica intima ) is the thinnest layer, comprised of a single layer of endothelium supported by a subendothelial layer. Capillaries consist of a single layer of endothelium and associated connective tissue.

What are functional blood vessels?

Function. Blood vessels function to transport blood. In general, arteries and arterioles transport oxygenated blood from the lungs to the body and its organs, and veins and venules transport deoxygenated blood from the body to the lungs.

What are the 3 blood vessels and their functions?

There are three kinds of blood vessels: arteries, veins, and capillaries. Each of these plays a very specific role in the circulation process. Arteries carry oxygenated blood away from the heart. They’re tough on the outside but they contain a smooth interior layer of epithelial cells that allows blood to flow easily.

What are the three types of blood vessels and their functions?

On the other hand, the function of blood vessels is to serve as a passage for the blood to flow. The blood vessels are of three types. They are: arteries, veins and capillaries. It is the capillaries where the exchange of gases and nutrients takes place with the individual cells.

What are the main functions of blood vessels?

A blood vessel’s main function is to transport blood around the body. Blood vessels also play a role in controlling your blood pressure. Blood vessels are found throughout the body. There are five main types of blood vessels: arteries, arterioles , capillaries, venules and veins.

What is the function of each blood vessles?

Blood Vessel Structure and Function: How the Circulatory Network Helps to Fuel the Entire Body The Three Major Types of Blood Vessels: Arteries, Veins, and Capillaries. Blood vessels flow blood throughout the body. Oxygenated Blood Flows Away from the Heart Through Arteries. The left ventricle of the heart pumps oxygenated blood into the aorta. Veins Carry Blood Back Toward the Heart.

What allows veins to function as blood reservoirs?

The walls of the veins have three layers; how-ever, they are much thinner than those of arteries. The lumen of the vein is much larger than that of ar-teries and can, therefore, accommodate more blood than arteries. Hence, the veins may serve as blood reservoirs. Many veins also have valves in them.