Which arteries primarily supply breast tissue?

Which arteries primarily supply breast tissue?

• A. Lateral Thoracic and Internal Mammary Arteries
• B. Axillary and Brachial arteries
• C. Carotid and Vertebral arteries
• D. Renal and Hepatic arteries

Answer: (A)

Breast tissue relies on vessels that run along the chest wall and into the breast from two main directions. The primary sources are the lateral thoracic artery, a branch of the axillary artery, which supplies the lateral portion of the breast, and the internal mammary (internal thoracic) artery, a branch of the subclavian artery, which gives perforating branches to the medial breast. Together these two arteries provide most of the arterial blood to the breast. There are smaller contributions from other chest wall vessels, but the lateral thoracic and internal mammary arteries are the key suppliers.

Breast tissue relies on vessels that run along the chest wall and into the breast from two main directions. The primary sources are the lateral thoracic artery, a branch of the axillary artery, which supplies the lateral portion of the breast, and the internal mammary (internal thoracic) artery, a branch of the subclavian artery, which gives perforating branches to the medial breast. Together these two arteries provide most of the arterial blood to the breast. There are smaller contributions from other chest wall vessels, but the lateral thoracic and internal mammary arteries are the key suppliers.