IMMUNOLOGY

Detailed explanation-1: -The thoracic duct usually drains into the systemic (blood) circulation at the left venous angle where left subclavian and left internal jugular veins unite to form the left brachiocephalic vein.

Detailed explanation-2: -One of these trunks, the right lymphatic duct, drains the upper right portion of the body, returning lymph to the bloodstream via the right subclavian vein. The other trunk, the thoracic duct, drains the rest of the body into the left subclavian vein.

Detailed explanation-3: -In over 95% of cases, the thoracic duct terminates in the internal jugular vein, the subclavian vein, or the angle between the two.

Detailed explanation-4: -The cisterna chyli and other major lymphatic trunks join to form the thoracic duct, which passes through the aortic hiatus to enter the mediastinum. After picking up additional lymphatic trunks within the thorax, the thoracic duct empties into the left subclavian or innominate vein.

Detailed explanation-5: -In a healthy body, the lymphatic channels from the liver and mesentery drain toward the thoracic duct, which is the main lymphatic vessel responsible for lymph drainage. In most people, the thoracic duct drains into the subclavian vein on the left side.