chpt22 - CHAPTER 22 The Lymphatic and Immune System and...

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CHAPTER 22 The Lymphatic and Immune System and Resistance to Disease 1) The composition of lymph is most similar to A) plasma. B) serum. C) cytosol. D) interstitial fluid. E) intestinal juice. Answer: D 3) The thoracic duct empties lymph into the A) right lymphatic duct. B) cisterna chyli. C) left subclavian vein. D) ventricles of the brain. E) right atrium of the heart. Answer: C 5) People who are confined to bed for long period of time often develop edema because A) their blood pressure becomes elevated, forcing more fluid into interstitial spaces as blood hydrostatic pressure rises. B) lack of motor activity leads to reduced sympathetic stimulation to lymphatic vessels, so lymph tends to pool. C) without skeletal muscle contraction to force lymph through lymphatic vessels, fluid tends to accumulate in interstitial spaces. D) reduced vasomotor tone allows proteins to leak from plasma, and water follows the osmotic gradient. E) heart rate and force of contraction are reduced, so the pressure gradient is insufficient to maintain lymph flow. Answer: C 6) Which of the following correctly lists the structures according to the sequence of fluid flow? A) lymphatic capillaries, interstitial spaces, blood capillaries, lymphatic vessels, lymphatic ducts, subclavian veins B) blood capillaries, lymphatic vessels, interstitial spaces, lymphatic capillaries, lymphatic ducts, subclavian veins C) blood capillaries, interstitial spaces, lymphatic capillaries, lymphatic ducts, lymphatic vessels, subclavian veins D) blood capillaries, interstitial spaces, lymphatic capillaries, lymphatic vessels, lymphatic ducts, subclavian veins E) blood capillaries, interstitial spaces, lymphatic vessels, lymphatic ducts, lymphatic capillaries, subclavian veins Answer: D
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10) Which of the following is considered to be a primary lymphatic organ? A) red bone marrow B) spleen C) any lymph node D) pharyngeal tonsil E) liver Answer: A 11) Which person most likely has the largest thymus gland? A) third trimester fetus B) 2-year-old C) 12-year-old D) 25-year-old E) 65-year-old Answer: C 12) T cells and B cells are A) phagocytes. B) antibodies. C) lymphocytes. D) complement proteins. E) both phagocytes and lymphocytes. Answer: C 13) B cells proliferate and differentiate into plasma cells in the A) liver. B) bloodstream. C) germinal centers of lymph nodes. D) red pulp of the spleen. E) Both C and D are correct. Answer: C 16) A chemical that is produced by virus-infected cells and released to provide nonspecific antiviral protection to neighboring cells is A) transferrin. B) interleukin-1. C) histamine. D) interleukin-2. E) interferon. Answer: E 17) Lysozyme is A) an enzyme found in body fluids that flow over epithelial surfaces that destroys certain bacteria. B) a type of antibody that makes something more recognizable to a phagocyte.
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chpt22 - CHAPTER 22 The Lymphatic and Immune System and...

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