Instructions

What is the term that describes the production of red blood cells? (A) Hemaglutination (B) Erythrocytosis (C) Erythropoiesis (D) Erythroblastosis 2. Which one of following is WRONG about the condition anemia? (A) It can be caused by too little iron in the diet. (B) It can be caused by kidney failure. (C) It is associated with overexpression of hemoglobin. (D) It results in reduced oxygen-carrying capacity of the blood 3. A female has a blood test. One mL of her blood is drawn, spun in a centrifuge, and the plasma volume is measured and found to be 0.6 mL. Two months later the same patient returns to the doctor and, after doing another blood test, the doctor tells the patient that she has become anemic compared to her previous visit. Which one of following plasma volume is most likely to be the woman’s data on the second visit? (A) 0.35 ml (B) 0.5 ml (C) 0.7 ml (D) 1 ml 4. Where is most of the iron in a person’s body located? (A) In the bone marrow (B) In the liver (C) In erythrocytes (D) In the kidneys 5. Which one of the following statements about blood clotting is NOT true? (A) It is the formation of a thrombus. (B) It occurs after formation of a platelet plug in a damaged vessel. (C) It requires the presence of erythrocytes. (D) It involves positive feedback by thrombin 6. Which one of the following is NOT an anticoagulant or stimulator of blood clot dissolution? (A) Vitamin K (B) Aspirin (C) Thrombin (D) Heparin 7. Which correctly describes functions of protein C? (A) It activates platelets and converts prothrombin to thrombin. (B) It inhibits clot formation and inactivates factors Va and VIIIa. (C) It binds to tissue factor and activates clotting factor VII. (D) It inactivates thrombin and converts fibrinogen to fibrin. 2/7 8. The killing of cancerous cells by the immune system is called: (A) Immune oversight. (B) Immune surveillance. (C) Tissue immunity. (D) Phagocytosis. 9. Which of the following statements about the immune system is TRUE? (A) Neutrophils, basophils, eosinophils, and monocytes originate in bone marrow, (B) Natural killer cells produce specific antibodies that kill bacteria and virus (C) Mast cells are derived from monocytes. (D) Plasma cells are derived from T lymphocytes. 10. Which one of following statements regarding the chemical mediators of inflammatory responses is NOT true? (A) They may be secreted by cells residing in the area of injury. (B) They may be secreted by cells that enter the affected area. (C) They may be generated by enzymatic cleavage of proteins in plasma. (D) They are all peptides. 11. Chemotaxis: (A) refers to the chemical attraction of neutrophils to a site of inflammation. (B) is important only for innate immune responses. (C) is important only for adaptive immune responses. (D) refers to the engulfing of microbes and foreign molecules by macrophages. 12. Cells of the immune system capable of phagocytosis include: (A) Macrophages, NK cells, and basophils. (B) B cells, T cells, and macrophages. (C) Monocytes, neutrophils, and plasma cells. (D) Macrophages, neutrophils, and dendritic cells. 13. F 514 i 1*** **? Which of the following descriptions in not true? (A) Ventricles: chambers whose contractions produce the pressures that drive blood through the pulmonary and systemic vascular systems and back to the heart. (B) Arteries: Major sit of resistance to flow ; responsible for pattern of blood-flow distribution to the various organs : participate in the regulation of arterial blood pressure. (C) Capillaries: Major sites of nutrient, metabolic end product, and fluid exchange between blood and tissues. (D) Veins: Low-resistance conduits for blood flow back to the heart. T 英文 X 11 繁體中文 х 14. If a vessel is to dilate to twice its previous radius, and if pressure remains constant, blood flow through this vessel would (A) increase by a factor of 16. (B) increase by a factor of 4. (C) increase by a factor of 2. (D) decrease by a factor of 16. 15. During exercise, all of the follows occur EXCEPT. (A) increased stroke volume. (B) increased heart rate. (C) shunting of blood from visceral organs to skeletal muscle and heart. (D) increased vasoconstriction of coronary arteries. 16. Regarding effects of epinephrine on the vessels, which of the following statement is correct? It stimulates adrenergic (A) a receptors to produce constriction and B receptors to produce dilation. (B) a receptors to produce dilation and B receptors to produce constriction. (C) both a and B receptors to produce dilation. (D) both a and B receptors to produce constriction. 17.

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