Question

a molecule produced by cells of the right arm moves into a nearby lymphatic vessel. this molecule will eventually enter the bloodstream by passing through the ____ into the ____
multiple choice
right lymphatic trunk; right subclavian vein
right lymphatic trunk; superior vena cava
thoracic duct; right subclavian vein
thoracic duct; superior vena cava

Explanation:

The right lymphatic trunk drains lymph from the right arm, right side of the head and neck, and right thorax. It empties into the right subclavian vein. The thoracic duct drains the rest of the body (not the right arm). The superior vena cava is not the direct site where the right lymphatic trunk empties.

Answer:

right lymphatic trunk; right subclavian vein