Major Blood Vessels
Blood from the body tissues enters the right side of the heart via the vena cava. The heart then pumps the blood to the lungs through the pulmonary artery for oxygenation. Blood flows back to the left side of heart through the pulmonary vein. From the heart the blood is pumped to the rest of the body via the aorta.
The aorta branches into arteries that serve the various body organs. The blood then returns back to the right side of the heart via the vena cava.
The carotid artery supplies the head with blood while the carotid vein drains blood out of the head.
Hepatic artery supplies blood to the liver while hepatic vein drains blood out from the liver.
Mesenteric artery supplies blood to the gut while hepatic portal vein drains blood from the gut to the liver
The renal artery supplies the kidneys with blood while renal vein drains blood from the kidney
The iliac artery supplies the trunk and limbs with blood while iliac vein drains blood away.
The subclavian artery supplies the arms with blood while the subclavian vein drains blood away from the arms.
The coronary artery supplies the heart muscles with blood while the coronary vein drains blood away from the heart muscles.
