20 - thoracic duct
The thoracic duct This main lymphatic duct conveys all the lymph from the lower limbs, pelvis, abdomen, left side of the thorax and head and neck and left upper limb to the venous system; that is, all but the right superior quadrant of the body. It drains the cisterna chyli, which is an elongated sac that lies on the right side of the bodies of the 1st and 2nd lumbar vertebrae below the
