Lymphatic System KEY Questions and Correct Answers

Select the correct statement about lymph transport. A) Under normal conditions, lymph vessels are very high-pressure conduits. B) Lymph transport is faster than that occurring in veins. C) Lymph transport is only necessary when illness causes tissue swelling. D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles. D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles - Peyer's patches are clusters of lymphoid tissue found primarily in the large intestine. - false The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream - true Lymph always flows away from the heart - false Lymphatic capillaries are permeable to proteins. - true Digested fats are absorbed from the intestine by the lymph capillaries. - true Chyle is delivered to the blood via the lymphatic system. - true All lymphoid organs develop from mesoderm. - false About 3 liters of fluid are lost to the tissue spaces every 24 hours and are returned to the bloodstream as lymph. - true Because lymph vessels are very low-pressure conduits, movements of adjacent tissues are important in propelling lymph through the lymphatics - true Lymphoid tissue is mainly reticular connective tissue - true Lymphocytes reside temporarily in lymphoid tissue, then move to other parts of the body - true All the lymphoid organs are well developed before birth - false When tissues are inflamed, lymphatic capillaries develop openings that permit uptake of large particles such as cell debris, pathogens, and cancer cells. - true The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs. - false