Veins in the circulatory system and veins in the lymphatic system have all of the following in common except they
A) carry fluid back toward the heart
B) have one-way valves
C) drain into the thoracic duct
D) All of the above are true of both veins of the circulatory system and veins of the lymphatic system.

Question

Quizplus · Accepted Answer

While veins in the circulatory and lymphatic systems have several similarities, they do not always drain into the thoracic duct. Only lymphatic vessels in the lower body, left arm, and left side of the head and neck drain into the thoracic duct. Lymphatic vessels from other areas drain into the right lymphatic duct.

Veins in the Circulatory System and Veins in the Lymphatic