Long thoracic vein

Long Thoracic Vein

The long thoracic vein is an important anatomical structure located in the upper extremity of the human body. It plays a crucial role in the venous drainage of the upper limb. In this article, we will explore the anatomy, function, and clinical significance of the long thoracic vein.

Anatomy

The long thoracic vein is a superficial vein that runs along the lateral aspect of the thorax. It originates from the dorsal venous network of the hand and ascends along the lateral border of the scapula. It then continues superiorly, passing through the axilla and eventually draining into the axillary vein.

The long thoracic vein receives blood from various tributaries, including the superficial veins of the upper limb, such as the cephalic vein and the basilic vein. It also receives contributions from the lateral thoracic vein, which drains the lateral chest wall.

Function

The primary function of the long thoracic vein is to drain deoxygenated blood from the upper limb and return it to the heart. It serves as an important pathway for the venous return of the upper extremity, ensuring proper circulation and oxygenation of the tissues.

Clinical Significance

The long thoracic vein is of clinical significance in several medical conditions. One notable condition is thoracic outlet syndrome, which can result in compression or obstruction of the long thoracic vein. This can lead to symptoms such as swelling, pain, and impaired venous drainage of the upper limb.

Additionally, the long thoracic vein may be used as a site for venous access in certain medical procedures. It can be cannulated for the administration of intravenous fluids or medications when other veins are inaccessible or compromised.

See Also

• Vein
• Upper limb anatomy
• Thoracic outlet syndrome