diameter of the blood vessels
Finally, the arteries transport blood from the heart. Before we proceed with the functions of the body parts, let us start learning about the blood vessels diameter. The Diameter of Blood Vessels. What is the diameter of blood vessels? The diameter of blood vessels ranges from 8 micrometer to 25000 micrometer. The type of blood vessels that has the smallest diameter is the capillary while the type with the largest diameter is the artery. The artery also has the thickest wall and the capillary has the thinnest wall. Arteries can be classified into two types, namely the large arteries and the arterioles.