Difference between Artery, Vein and Capillary

The following table shows the difference between artery, vein and capillaries:

Criteria	Artery	Vein	Capillary
Function	Transports blood from the heart to other organs of the body.	Transports blood from organs back to the heart.	Carries blood to organs where the exchange of gases occurs.
Thickness of Wall	Thick walls	Thin walls	Very thin walls
Elasticity	Elastic walls	Less elastic walls	Inelastic walls
Valves	No valves	Valves are present	No valves
Pressure of Blood	Very high	Very Low	Low

Also read: Difference Between Arteries And Veins

What are Blood Vessels?

Blood Vessels are the components of the circulatory system through which the blood circulates in the body. The function of blood vessels is to deliver oxygen, nutrients, and essential substances to every cell in the body. Blood vessels create a complex network throughout the body, allowing for a continuous flow of blood from the heart to all areas and back again.

There are three major types of blood vessels. Understanding the structure of blood vessels is essential for grasping human physiology and the occurrence of common blood vessel disorders. It is known that the major function of blood vessels is to carry blood but it is essential to know the difference between the artery, vein, and capillaries; which are the different types of blood vessels.

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