Difference between Veins and Arteries

Veins and arteries are the component of circulatory system that usually carries blood to the lungs, heart, and other body areas. As both of them carry blood but they don’t work in same manner. Veins and arteries performed some functions in very specialized manner. In this article we will discuss the differences between these components.

Veins

Veins are the blood vessels that convey blood toward heart. Many veins convey deoxygenated blood from tissues back to heart; special cases are the pulmonary and umbilical veins, these two convey oxygenated blood to heart.

Arteries

Arteries are the blood vessels that convey blood far from heart. Most of the arteries convey oxygenated blood except pulmonary and umbilical arteries. Arterial formation starts from endothelial cells.

Veins VS Arteries

There are some contrast between vein and arteries that are explained in this article below.

  • Carries:

Veins always carry the blood towards heart aside from pulmonary and umbilical veins. The blood which veins carry is always deoxygenated blood.

Arteries always carry the blood far from the heart aside from pulmonary and umbilical veins. The blood which arteries carry is always oxygenated blood.

  • Walls:

Veins have usually thin and non flexible walls. Veins have collapsible walls.

Arteries have usually thick, flexible and more rigid walls.

  • kinds:

Veins can be categorized into pulmonary and systemic veins. Pulmonary veins are an arrangement of veins that conveys oxygenated blood from lungs to heart whereas systemic veins deplete the tissues of body and convey deoxygenated blood to heart.

Two kinds of arteries exist in body that is pulmonary and systemic. Pulmonary artery normally carries the blood which is deoxygenated from heart, to lungs, for purging whereas systemic artery shape a system of arteries that carries the oxygenated blood from heart to different parts of body.

  • Direction:

In veins, the direction of flow of blood is from other body parts to heart.

In arteries, the direction of flow of blood is from heart to other body parts.

  • Position:

Veins normally exist nearer to the skin.

Arteries normally exist deeper in body.

  • Valves:

In veins, valves exist particularly in limbs.

In arteries, valves don’t exist aside from semi lunar valves.

  • Broadest layer:

In veins, broadest layer exist which named as “Tunica adventitia”.

In arteries, broadest layer exist which named as “Tunica media”.

  • Vessel:

Vein is actually worked as capacitance vessel.

Arteries worked as resistance vessel.

  • Lumen:

Veins have wide lumen.

Arteries have narrow lumen.

  • Color:

Veins are usually bluish in their color.

Arteries are usually red in their color.

  • Movement:

Veins normally show slow movement of the blood. Blood exists in veins moves with low pressure.

Arteries normally show spurt movement of the blood which also gives heartbeat. Blood exists in artery moves with high pressure.

  • At time of death:

Veins get topped off at time of death.

Arteries get empty at time of death.

Conclusion

From the above article we can conclude that both of these components play a vital role in our body and both of them are very important to survive.