MICROANATOMY

Detailed explanation-1: -In over 95% of cases, the thoracic duct terminates in the internal jugular vein, the subclavian vein, or the angle between the two. The remaining 5% include termination in the external jugular vein, vertebral vein, brachiocephalic vein, suprascapular vein, and transverse cervical vein.

Detailed explanation-2: -The thoracic duct drains lymph from the right and left descending thoracic lymph trunks, originating from the lower 6 intercostal spaces (6 to 11). The duct also receives lymph from intercostal spaces 1 to 5 via the upper intercostal lymph trunks. Additional tributaries include the: mediastinal lymph trunks.

Detailed explanation-3: -Which statement is true of the thoracic duct? It drains the lymph from the entire left side of the body and the right abdomen and leg. Which of the following features is not common to both lymphatic collecting ducts and veins?