Process of lymph returning to the bloodstream?

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Lymphatic drainage describes the return of lymph to the bloodstream. Lymph begins as interstitial fluid that enters lymphatic capillaries, becomes lymph, and travels through progressively larger vessels and lymph nodes for filtration. It then moves into the thoracic duct (and on the right side, the right lymphatic duct) which drain into the subclavian veins, returning the fluid to the venous circulation. The cisterna chyli is a reservoir at the base of the thoracic duct that collects lymph from the lower body; it’s part of this drainage pathway, not the entire process itself. Lymph formation is about creating lymph from tissue fluid, while nutrient transport concerns absorbing fats via intestinal lymphatics, not returning to blood.