The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body. Each artery is a muscular tube lined by smooth tissue and has three layers: The intima, the inner layer lined by a smooth tissue called endothelium
Here are the steps that the students can follow to draw the arteries and veins. Step 1: at first, people need to draw the heart with the pulmonary artery and vein. The students must place the valves in their proper position, and they can also indicate the four parts of the heart.
Illustration of the arterial system in the human body, shown in a standing figure. Note the feathery network of blood vessels in the left and right lungs (next to the heart). Arteries are the blood vessels that carry oxygen-rich blood to the body’s tissues. JOHN BAVOSI/Science Photo Library/Getty Images