Question

The lymph serves to

• A. return the interstitial fluid to the blood
• B. return the WBCs and RBCs to the lymph nodes
• C. transport CO₂ to the lungs
• D. transport O₂to the brain.

Answer 1

Answer: (A)

Lymph (also called tissue fluid in the intercellular spaces) is the colourless liquid found within the lymphatic system. An important function of lymph is to return interstitial fluid back to the blood. The interstitial fluid is the filtered form of the blood without the cellular components and plasma proteins. It consists of water containing dissolved materials. It receives CO₂ nitrogenous waste products, hormones and other synthetic substances from the tissue cells and enters the lymph capillaries to discharge them into blood.