Subclavian vein

Definition

The subclavian vein is a major vein located under the clavicle (collarbone) that carries blood from the arms and upper body back to the heart. It plays a critical role in the venous return part of systemic circulation within the cardiovascular system.

Related terms

Venous Return: The process by which blood returns to the heart via veins from various parts of the body.

Brachiocephalic Vein: A vein formed by the union of the internal jugular and subclavian veins that drains blood from the head, neck, and upper limbs.

Superior Vena Cava:

A large vein carrying deoxygenated blood into the heart from the head, neck, upper limbs, and chest