Which of the following is NOT true of the lymphatic system?

• A. It Relies on Muscle Movement to Circulate Lymph
• B. It Circulates Waste Products of Metabolism Away from Cells
• C. Its Vessels Closely Parallel the Major Arteries in the Body
• D. It Circulates Oxygen, Nutrients and Hormones to the Cells

Answer: (C)

Lymph movement relies on muscle contractions and valve-driven flow within a thin-walled, one-way network that returns interstitial fluid to the bloodstream and supports immune defense. The vessels tend to run with the venous system and drain into the subclavian veins via the thoracic and right lymphatic ducts, not along the major arteries. That arrangement is why the statement about lymphatic vessels closely paralleling the major arteries isn’t accurate. In addition, oxygen, nutrients, and hormones are carried primarily by the blood through the cardiovascular system, not by the lymphatic system.