The thoracic duct drains into which venous junction?

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Lymph returns to the bloodstream at specific venous junctions where the lymphatic and venous systems meet. The thoracic duct, which collects lymph from most of the body below the diaphragm and the left side of the upper body, drains into the left venous angle—the junction of the left internal jugular and left subclavian veins. This placement allows lymph to mix with venous blood entering the circulation efficiently.

The right lymphatic duct has a parallel role on the right side, draining into the right venous angle (junction of the right internal jugular and right subclavian veins). The junction of the superior vena cava and right atrium is not where lymph drains. And the left subclavian vein alone is not the drainage point—the left venous angle is the actual junction formed by the left internal jugular and left subclavian veins.