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.
Read more about this topic: Subclavian Vein