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Where does the thoracic duct empty lymph into the bloodstream?

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Diagram of the human lymphatic system highlighting lymphatic vessels and major lymphoid organs, including lymph nodes, adenoids, tonsils, thymus gland, spleen, appendix, bone marrow, and ducts. — lymphatic system The human lymphatic system, showing the lymphatic vessels and lymphoid organs.

The thoracic duct serves as the primary channel for lymph in the mammalian body. It empties lymph into the bloodstream at the base of the neck, specifically at the junction where the left subclavian vein and the left internal jugular vein meet to form the left brachiocephalic vein.123