Answer to Question 1
ANS: C
Baroreceptors are found in the carotid arteries. They are not found in the renal artery, the superior vena cava, or the circle of Willis.
Answer to Question 2
ANS: D
The thoracic duct drains lymph into the left subclavian vein, not the right subclavian vein. The right lymphatic duct drains into the right subclavian vein. The thoracic duct does not drain lymph into the right atrium.