Arteries of the Human Body

The arterial system is a network of blood vessels that carries oxygenated blood away from the heart to the tissues of the body. Understanding the major arteries is essential for studying human anatomy and physiology, as these vessels are critical for maintaining tissue perfusion and organ function.

Major Systemic Arteries

Systemic arteries transport oxygen-rich blood from the left side of the heart to the body. The following are key arteries and their primary regions of supply:

• Aorta: The largest artery in the body, originating from the left ventricle and distributing blood to all systemic arteries.

• Brachiocephalic artery: Branches from the aortic arch; supplies blood to the right arm and right side of the head and neck.

• Common carotid arteries: Supply the head and neck; each divides into internal and external carotid arteries.

• Subclavian arteries: Supply the arms, chest, shoulders, back, and central nervous system.

• Brachial artery: Continuation of the axillary artery; supplies the upper arm.

• Radial and ulnar arteries: Branches of the brachial artery; supply the forearm and hand.

• Renal arteries: Supply the kidneys.

• Gonadal (genital) arteries: Supply the testes in males (testicular arteries) or ovaries in females (ovarian arteries).

• Common iliac arteries: Terminal branches of the abdominal aorta; supply the pelvis and lower limbs.

• Internal iliac arteries: Supply pelvic organs.

• External iliac arteries: Continue as femoral arteries to supply the lower limbs.

• Femoral artery: Main artery of the thigh; supplies the lower limb.

• Deep artery of the thigh (profunda femoris): Supplies deep structures of the thigh.

Arteries of the Trunk and Abdomen

• Superior mesenteric artery: Supplies most of the small intestine and part of the large intestine.

• Inferior mesenteric artery: Supplies the distal part of the large intestine.

• Celiac trunk: A short artery that branches into the left gastric, splenic, and common hepatic arteries to supply the stomach, spleen, and liver.

• Splenic artery: Supplies the spleen.

• Common hepatic artery: Supplies the liver.

• Left gastric artery: Supplies the stomach.

• Right gastric artery: Also supplies the stomach.

Pulmonary Circulation

• Pulmonary trunk: Carries deoxygenated blood from the right ventricle to the lungs via the right and left pulmonary arteries.

Coronary Circulation

• Right coronary artery: Supplies blood to the right side of the heart muscle.

Summary Table: Major Arteries and Their Regions Supplied

Key Terms and Definitions

• Artery: A blood vessel that carries blood away from the heart.

• Oxygenated blood: Blood rich in oxygen, typically found in systemic arteries.

• Pulmonary circulation: The movement of blood from the heart to the lungs and back for gas exchange.

• Systemic circulation: The movement of blood from the heart to the rest of the body and back.

Additional info:

• The list provided is a selection of the most clinically significant arteries, but the human body contains many more branches and subdivisions.

• Knowledge of arterial anatomy is essential for understanding blood pressure, pulse points, and the effects of vascular diseases.