Question

multiple choice question
which collecting duct drains lymph from the head, the right arm, and the right side of the thorax?

thoracic duct
bronchomediastinal trunk
cisterna chyli
right lymphatic duct

Explanation:

To solve this, we recall the functions of lymphatic ducts: The right lymphatic duct drains lymph from the right upper limb, head, and right thorax. The thoracic duct drains most of the body (except the right upper quadrant). Bronchomediastinal trunk drains thoracic organs. Cisterna chyli is a sac for lymph before the thoracic duct. So the correct duct is the right lymphatic duct.

Answer:

D. Right lymphatic duct