What is the difference between arteries and veins?

artery and veins are parts of the circulatory system that carry blood between the heart, lungs and all other areas of the body. While both carry blood, they have nothing else in common. Tesky and veins are made of somewhat different tissues, each performing some functions in a specialized way. The first and most important difference between them is that all arteries take blood from the heart and all veins transmit blood to the heart from remote areas. Most arteries carry oxygenated blood and most veins carry deoxygenated blood; Exceptions of this rule are pulmonary arteries and veins.

Arterial tissue is designed and specialized to be particularly suitable for fast and efficient blood supply that carries oxygen necessary for the functioning of each body cell. The outer layer of the artery is made of connective tissue that covers the muscle middle layer. These muscles are withdrawing between cardiac rhythms in such a way as we take our pulse, in fact we do not feel our heart rhythm per se , alE instead contraction of the arterial muscle.

Behind the arterial muscle is the innermost layer, made of smooth endothelial cells. These cells are specialized to provide a smooth path for blood flow. This area of ​​cells is also what can be damaged and threatened throughout the life of a person, leading to two common causes of death, namely a heart attack and a stroke.

veins have a different structure and function from the arteries. They are very flexible and collapse when they are not full of blood. They usually carry deoxygenated blood, rich in carbon dioxide, to the heart to be sent to the lungs for oxygenation. In some respects, the tissue tissue layers are similar to the arteries, although the muscle does not complicate as an arterial muscle.

Unlike other artery, deoxygenated blood bears. Once the veins brought this blood from the body to the heart, it is pumped into the lungs. The lung vein moves oxygenatedBlood from the lungs back to the heart.

While the location of the arteries is very similar from man to person, it is not so with veins that have greater variability. The veins, unlike the arteries, are used as access points to the bloodstream in the medical area, for example when a person gets a medicine or liquid directly into the bloodstream or when blood is taken. Because the veins do not take place like arteries, valves are present in the veins that maintain blood flow in only one direction. Without these valves, gravity would quickly cause blood to join on the limbs, causing injury or at least disruption of the system efficiency.