Vena axillaris

Vena Axillaris

The Vena Axillaris is a large blood vessel that carries deoxygenated blood from the lateral aspects of the thorax, the axilla (armpit) and the upper limb back to the heart. It is part of the venous system and plays a crucial role in the circulatory system.

Anatomy

The vena axillaris is the continuation of the brachial vein and becomes the subclavian vein at the lateral border of the first rib. It is located in the axillary region, hence its name. The vein is accompanied along its course by the axillary artery.

Tributaries

The vena axillaris receives blood from several tributaries, including the basilic vein, the cephalic vein, and multiple venae comitantes. These tributaries drain blood from various regions of the upper limb and thorax.

Clinical Significance

Due to its location and size, the vena axillaris is often used for central venous catheterization, a procedure in which a catheter is inserted into a large vein. It can also be affected by various medical conditions, such as thrombosis and aneurysm.

See Also

• Vein
• Axilla
• Circulatory system
• Central venous catheterization