Thoracic artery

Thoracic Artery

The thoracic artery, also known as the internal thoracic artery, is a major artery in the human body. Image from Gray's Anatomy.

The Thoracic artery, also known as the internal thoracic artery, is a major artery in the human body. It originates from the subclavian artery and runs down the inside of the chest wall, parallel to the sternum.

Structure

The thoracic artery is a paired structure, with one artery located on each side of the sternum. It gives off several branches as it descends, including the anterior intercostal arteries, which supply blood to the intercostal muscles, and the pericardiacophrenic artery, which supplies the pericardium and diaphragm.

Function

The thoracic artery plays a crucial role in supplying blood to the chest wall and the breasts. It also contributes to the blood supply of the heart and the thymus.

Clinical significance

The thoracic artery is often used in coronary artery bypass grafting (CABG), a surgical procedure to improve blood flow to the heart. The artery's long length and reliable blood flow make it an ideal choice for this procedure.

See also

• Artery
• Circulatory system
• Coronary artery bypass grafting