MICROANATOMY

Detailed explanation-1: -The thoracic duct is the largest and most important lymphatic channel of the body (see Figs. 6-11 and 6-13). The thoracic duct drains the lower extremities, pelvis, abdomen, left side of the thorax, left upper extremity, and left side of the head and neck.

Detailed explanation-2: -Lymphatic ducts are the largest lymphatic vessels. These two ducts drain lymph into veins in the neck (the right and left subclavian veins at their junctures with the internal jugular veins).

Detailed explanation-3: -The various efferent lymphatic vessels in the body eventually converge to form two major lymphatic channels: the right lymphatic duct and the thoracic duct.

Detailed explanation-4: -The thoracic duct drains lymph into the circulatory system at the left brachiocephalic vein between the left subclavian and left internal jugular veins.