Ch.17

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Sunni7
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204618
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Ch.17
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2013-03-03 20:17:48
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Blood System
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A&P Final review
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  1. The composition of blood is:
    55% plasma, 45% formed elements
  2. A hematocrit of 45% means that in every 100 ml of whole blood:
    there are 45 ml of red blood cells and 55 ml of plasma.  

    NORMAL
  3. Reduced red blood cell numbers cause:
    anemia
  4. Which formed elements carry oxygen?
    erythrocytes
  5. All formed elements arise from which stem cell?
    hemocytoblast
  6. Hematocrit and packed cell volume (PCV) are ______ terms.
    sysnonymous
  7. A reticulocyte count can't indicate to a physician the rate of leukocyte ______.
    formation
  8. Oxygen deficiency increases RBC numbers by increasing the secretion of erythropoietin by the _____.
    kidneys
  9. classification of leukocytes that contain cytoplasmic granules:
    Granulocytes
  10. most numerous leukocytes
    neutrophils
  11. granulocytes that release heparin and histamine
    BASOPHILS
  12. granulocytes that protect against infections from parasitic worms and allergic reactions
    EOSINOPHILS
  13. agranulocytes that produce antibodies
    LYMPHOCYTES
  14. agranulocytes that enter tissue spaces as macrophages
    MONOCYTES
  15. cell fragments that function in blood clotting and hemostasis
    PLATELETS
  16. cells from which platelets are formed
    MEGAKARYOCYTES
  17. classification of leukocytes without cytoplasmic granules
    AGRANULOCYTES
  18. classification of formed elements that are nucleated cells lacking hemoglobin
    LEUKOCYTES
  19. A person with antibody A in his or her plasma would have which blood type?
    type B
  20. People with type O blood are considered to be universal donors because their blood contains:
    neither A nor B antigens on their RBCs
  21. A blood type and crossmatch is performed prior to transfusion. If this procedure is not competed:
    • the blood may agglutinate
    • blood lysis my occur
    • a transfusion reaction may occur
  22. Type AB blood is considered to be the __________ ________.
    universal recipient
  23. Type AB blood contains ___ plasma antibodies.
    NO
  24. Most blood does not contain the _______ antibodies.
    anti-Rh
  25. ____ is a plae yellow fluid that accounts for more than half of the blood volume.
    Plasma
  26. _____ is whole blood minus the clotting elements.
    Serum
  27. What are critial components of coagulation?
    • thrombin
    • fibrinogen
    • fibrin
  28. For prothrombin to be synthesized by the liver, an adequate amount of which vitamin is required?
    Vitamin K
  29. What hasten clotting?
    • rough spot in the endothelium
    • abnormally slow blood flow
  30. ______ is an excess of RBCs.
    Polycythemia
  31. _______ _______ often results from the destruction of bone marrow by drugs, toxic chemicals, or radiation.
    Aplastic anemia
  32. A type of hemolytic anemia common to African-Americans is _____ _____ _____.
    Sickle Cell Anemia
  33. _________ refers to an abnormally low WBC count.
    Luekopenia
  34. ______ is a stationary clot.
    Thrombus
  35. A circulating clot is a(n) _____.
    EMBOLUS
  36. ________ is a type of X-linked inherited disorder that results from a failure to form blood-clotting factore VIII, IX, or XI.
    Hemophilia
  37. Sickle cell anemia is caused by:
    a genetic defect
  38. Polycythemia is characterized by an abnormally high number of:
    erythrocytes
  39. PERNICIOUS anemia is caused by a lack of vitamin:
    B 12
  40. Deficiency in the number or function of erythrocytes is called:
    anemia
  41. They have ability to fight infections
    They provide defense against certain parasites
    They provide immune defense

    Characteristics of what?
    Leukocytes
  42. What is found in Serum?
    water & hormones
  43. What is NOT found in blood plasma?
    • water
    • oxygen
    • hormones
  44. An allergic reaction may increase the number of:
    EOSINOPHILS
  45. What is a blood clot that is moving through the body called?
    embolism
  46. When could difficulty with the Rh blood factor arise?
    Rh-negative woman and an Rh-positive man produce a child
  47. What is the primary function of hemoglobin?
    carry oxygen
  48. Steps involved in blood clot formation?
    • A blood vessel is injured and platelet factors are formed
    • Fibrinogen is converted to fibrin
  49. Lymphocytes:
    immunity
  50. Erythrocyte disorder:
    anemia
  51. type AB:
    contain A & B antigens
  52. Basophils:
    heparin
  53. Leukemia:
    cancer
  54. Platelets:
    clotting
  55. type O:
    contains anti-A and anti-B antibodies
  56. Rh factor:
    erythroblastosis fetalis
  57. Buffy coat:
    thin, white layer of leukocytes and platelets
  58. Neutrophils:
    phagocytosis
  59. Leukopenia:
    deccrease in WBCs
  60. Hematocrit:
    volume percent of RBCs in whole blood
  61. Some WBCs are capable of diapedesis; this means they can:
    migrate out of blood vessels into tissue spaces
  62. What has the greatest power of phagocytosis in the tissue?
    • Neutrophils
    • Monocytes
  63. The major ingredient in hemoglobin that allows oxygen to be transported is:
    IRON
  64. A person with only antibody B in her or her plasma would have which blood type?
    Type A
  65. Thrombocytes are used for:
    blood clotting
  66. What cell types are classified as agranulocytes?
    • Lymphocytes
    • Monocytes
  67. Under the microscope, erythrocytes appear as:
    biconcave disks without nuceli
  68. What is plasma?
    • Liquid part of blood.
    • Made up of 90% water and 10% solutes

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