SUBCLAVIAN VEIN

Each subclavian vein is a continuation of the axillary vein and runs from the outer border of the first rib to the medial border of anterior scalene muscle.
From here it joins with the internal jugular vein to form the brachiocephalic vein (also known as "innominate vein"). The angle of union is termed the venous angle.
The subclavian vein follows the subclavian artery and is separated posteriorly by the insertion of anterior scalene.
[edit]Lymph

The thoracic duct drains into the left subclavian vein, near its junction with the left internal jugular vein.
It carries lymph (water and solutes) from the lymphatic system, as well as chylomicrons or chyle, formed in the intestines from dietary fat and lipids.
The right lymphatic duct drains its lymph into the junction of the right internal jugular vein, and the right subclavian vein.
[edit]Etymology

The term subclavian can be broken down to: sub (below), and clavian (pertaining to the clavicle).