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Where does the thoracic duct run through the body?

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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 originates near the lower back and ascends through the body, positioned closely in front of the vertebral column.12

The duct continues upward to the base of the neck, where it terminates by opening into the venous system at the junction of the left subclavian vein and the left internal jugular vein.12