Vena subclavia

Vena Subclavia is a major vein in the human body that plays a crucial role in the circulatory system. It is responsible for returning deoxygenated blood from the upper extremities to the heart.

Anatomy

The Vena Subclavia is located in the upper chest, beneath the collarbone (or clavicle), hence its name which translates from Latin as 'under the clavicle'. It is formed by the union of the Internal Jugular Vein and the External Jugular Vein. Each side of the body has its own Vena Subclavia, the right and left, which drain blood from their respective sides of the body.

Function

The primary function of the Vena Subclavia is to return deoxygenated blood from the upper extremities, including the arms and shoulders, back to the heart. This blood is then pumped to the lungs where it is oxygenated before being returned to the heart to be pumped out to the rest of the body.

Clinical Significance

The Vena Subclavia is often used in medical procedures as a site for central venous access. This can be for the administration of medication, fluids, or for the insertion of a Central Venous Catheter. However, due to its location, there is a risk of complications such as Pneumothorax or Subclavian Vein Thrombosis.

See Also

• Circulatory System
• Veins
• Central Venous Catheter
• Pneumothorax
• Subclavian Vein Thrombosis