Lateral thoracic arteries

Arteries that supply blood to the lateral thoracic region

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Latin	arteriae thoracicae laterales

The lateral thoracic arteries are blood vessels that supply oxygenated blood to the lateral aspects of the thoracic region. These arteries are branches of the axillary artery and play a crucial role in the vascularization of the serratus anterior, pectoralis major, and pectoralis minor muscles.

Anatomy

The lateral thoracic arteries typically arise from the second part of the axillary artery. They descend along the lateral border of the pectoralis minor muscle and continue to supply the serratus anterior muscle. These arteries also provide branches to the pectoralis major and pectoralis minor muscles, as well as to the mammary gland in females.

Function

The primary function of the lateral thoracic arteries is to supply oxygenated blood to the muscles and tissues in the lateral thoracic region. This includes the serratus anterior, which is essential for the movement of the scapula, and the pectoralis major and pectoralis minor, which are involved in the movement of the shoulder and upper arm.

Clinical Significance

The lateral thoracic arteries can be involved in various clinical conditions. For instance, they may be affected in cases of thoracic outlet syndrome, where the blood flow through these arteries is compromised. Additionally, these arteries are often considered in surgical procedures involving the breast and axilla.

Related Pages

• Axillary artery
• Serratus anterior
• Pectoralis major
• Pectoralis minor
• Lateral thoracic vein
• Thoracic outlet syndrome