How many types of blood vessel are there?
Best Answer – Chosen by Voters Blood vessels are hollow tubes that carry blood through miles and miles of blood vessels in a never ending stream. If you could take all the blood vessels of a average size child and line them up they could reach about 60,000 miles long. In an adult the blood vessels could reach 100,000 miles long. The blood vessels carry blood between the heart, different tissues, and organs of the body. There are three types of blood vessels: arteries, veins, and capillaries. These blood vessels have the ability to expand to allow more blood to flow through them. They can also contract to help control the flow of blood. The blood flows through the big arteries into smaller ones. The smallest arteries, called arterioles, direct the blood flow into the capillaries. The capillaries connect to the smallest veins called venules. The Veins then return blood to the heart. Arteries The arteries are elastic, muscular tubes that carry the blood from the left ventricle of the hear
