d) Decreased or defective erythrocytes. d)

Here are the answers to questions 16-55:

16. d) Decreased or defective erythrocytes. d)
17. c) Women of childbearing age. c)
18. c) Initiating blood clotting. c)
19. b) Factor VIII. b)
20. c) Pericardium. c)
21. b) Hyaline. b)
22. d) Valves. d)
23. a) Gastrin. a)
24. d) Islet cells. d)
25. d) Cancer of the white blood cells. d)
26. a) Immune system. a)
27. a) Innate Immunity. a)
28. d) Acquired immunity. d)
29. d) All of the above. d)
30. a) Innate Immunity. a)
31. a) T-cells. a)
32. d) All of the above. d)
33. c) A set of erythrocyte antigens. c)
34. c) Isoagglutination. c)
35. d) All of the above. d)
36. d) All of the above. d)
37. a) Intravenous, intraarterial, intraosseous. a)
38. b) Determine the compatibility of transfused blood. b)
39. d) Haemoglobin. d)
40. a) Sympathetic stimulation of the SA node. a)
41. c) Sinusoidal. c)
42. c) After passing through the right AV valve. c)
43. b) The semilunar valve. b)
44. c) The mitral valve. c)
45. a) Erythrocyte. a)
46. c) Fibrin. c)
47. c) From the right ventricle arteries to arterioles to alveolar capillaries to venules to veins. c)
48. a) Cells with nuclei that do not contain haemoglobin. a)
49. b) An excessive number of platelets. b)
50. d) Left atrium and left ventricle. d)
51. b) Tricuspid valve, right ventricle, left atrium, mitral valve. b)
52. d) Has valves, carries blood towards the heart and carries blood at low pressure. d)
53. a) A antigen on their red blood cells. a)
54. a) Skeletal muscle cells are voluntary but cardiac muscle cells are not. a)
55. a) Aorta. a)