Final answer:
Lymph from the right leg travels through the cisterna chyli to the thoracic duct, which then drains into the left subclavian vein and the superior vena cava. The right lymphatic duct is not involved in draining lymph from the lower body, including the right leg.
Step-by-step explanation:
Lymph from the right leg and lower abdomen enters the bloodstream via the thoracic duct. The thoracic duct begins in the cisterna chyli and receives lymph from the lower abdomen, pelvis, and lower limbs through the left and right lumbar trunks and the intestinal trunk.
The correct path of lymph draining into lymphatic vessels from the right leg to the bloodstream is through the thoracic duct, which then drains into the left subclavian vein, and ultimately enters the superior vena cava of the systemic circulation. The right lymphatic duct is not involved in this process as it only drains lymph from the upper right side of the body. Instead, lymph from the right leg is carried to the cisterna chyli and then travels up the thoracic duct.
Hence, when considering the provided options, the correct answer is not listed. The lymph from the right leg would travel along the following path: Cisterna chyli -> Thoracic duct -> Left subclavian vein -> Superior vena cava.