Blood Vessel Anatomy
Principal arteries
of the body
Principal veins
of the body
Principal arteries and veins of the lower limb

The vascular system is a closed system of vessels. It carries blood from the heart to the tissues of the body, collects it, and then transports it back to the heart.

There are three major types of vessels with some differences in the structure of their walls:

Text written by Dr Nameer Abdulahad
Text edited by Jean Shapcott