22_ActiveLecturePRS

22_ActiveLecturePRS - All of the following except _ is a...

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All of the following except ____ is a function of the lymphatic system. 1. Production, maintenance, and distribution of lymphocytes 2. Resisting and overcoming disease 3. Draining lymph from the bone marrow 4. Maintain normal blood composition and volume
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Which of the following is true of lymphatic capillaries ? 1. They have smaller diameters than blood capillaries. 2. Endothelial cells of lymphatic capillaries are not bound tightly together, but they do overlap. 3. They have thicker walls than blood capillaries. 4. They form continuous tubes.
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Which of the following is a dangerous consequence of lymphedema in a limb? 1. Accumulation of toxins and pathogens due to stagnant interstitial fluids 2. Swelling and distension of the limb 3. Loss of elasticity in connective tissue of the affected limb 4. All of the above are correct
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If the thymus failed to produce thymic hormones, which population of lymphocytes is affected? 1. B lymphocytes 2. T lymphocytes 3. Monocytes 4. Antigen-producing cells
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Why do lymph nodes enlarge during some infections? 1. Because of bacterial invasion and accumulation 2. Due to accumulation of antibodies 3. Due to accumulation of circulating T cells 4. Due to phagocytic and lymphatic cell division
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After splenectomy , which immune functions become impaired? 1. Initiation of immune response by B cells and T cells in response to antigens 2. Phagocytosis of damaged or infected cells circulating in blood 3. Complement activation 4. 1 and 2 are correct
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Which of the following is not a characteristic or function of nonspecific defenses ? 1. Are present at birth 2. Destruction of abnormal cells by NK cells 3. Dependence on the activity of lymphocytes 4. Interferons coordinating defenses against viral infections
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Why would the liver, lungs, and CNS be affected by a low monocyte count in blood? 1.
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22_ActiveLecturePRS - All of the following except _ is a...

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