If the heart supplies the rest of the body with the blood with the nutrients, what about the heart? How is it supplied?
The heart is supplied with the nutrients it needs through Coronary arteries.
Another kind of artery would be a pulmonary artery.
This kind of artery carries oxygen to the lungs where it is absorbed and carbon dioxide is released into the blood stream.
What is the main artery in the body?
The aorta is the main artery in the body.
What is the liquid component of blood?