Exam 9 Cardiovascular system

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mel26704
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162652
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Exam 9 Cardiovascular system
Updated:
2012-07-18 19:42:34
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cardiovascular system
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cardiovascular system
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  1. What are the functions of the hematologic system?
    • oxygenation
    • hemostatsis (control of bleeding)
  2. What manufactures clotting factors and clears old and damaged RBCs?
    Liver
  3. What organ removes old RBCs?
    Spleen
  4. Average life span of RBC:
    120 days
  5. Average life span of platelets:
    10 days
  6. What are activated with the platelets and form a stable fibrin matrix over the wound?
    Clotting factors
  7. What is clear, straw-colored fluid that carries RBC, platelets, & clotting factors?
    Plasma
  8. What three things occur if a blood vessel is injured?
    • blood vessel constricts
    • platelets adhere, forming a platelet plug
    • coagulation ascade (clotting) is initiated, forming a stable fibrin matrix AKA scab 
  9. What happens to bon marrow as we age?
    becomes less productive
  10. Is hematologic function affected as a person ages?
    NO...unless a person is stressed with trauma, chronic illness, or treatment of cancer
  11. What is a disorder that affects the blood?
    blood dyscrasia
  12. What may elevation of RBCs indicate?
    body is compensating for chronic hypoxia
  13. The major component of erythrocytes is:
    Hgb
  14. What is a complex protein iron compound found in RBCs?
    hemoglobin
  15. Average female Hgb value:
    12-16 g
  16. Average male Hgb value:
    14-18 g
  17. Where does Hgb combine with O2? What is this called?
    lungs; oxyhemoglobin
  18. Where does Hgb combine with CO2?  What is this called?
    cells;  carbonhemoglobin
  19. What is the percentage of blood cells to plasma called?
    hematocrit
  20. What cells are produced in the red bone marrow, lymph tissues, thymus, and spleen?
    WBC (Leukocytes)
  21. What is the normal WBC count?
    5,000 - 10,000
  22. What is the average life span of a WBC?
    4-5 days
  23. What is the function of a WBC?
    fight infection
  24. Two groups of WBCs are:
    • granulocytes
    • agranulocytes 
  25. Granulocytes consist of what three types of cells?
    • neutrophils
    • eosinophils
    • basophils
  26. What cell ingests bacteria and dispose of dead tissue per phagocytosis and releases lysozyme?

    Is it a granulocyte or agranulocyte?

    What is the life span?
    • neurtrophils
    • granulocyte
    • 7 hours
  27. What cells are active in allergic reations and parasitic infections? Are they granulocytes or agranulocytes?
    • eosinophils
    • granulocyte
  28. What cells are stimulated by antigens or tissue injury? Are they granulocytes or agranulocytes?
    • basophils
    • granulocytes
  29. What are the two types of agranulocytes?
    • monocytes
    • lymphocytes
  30. Which cells dispose of bacteria and dead cells during the recovery from an acute bacterial infection per phagocytosis?
    monocytes
  31. What cells are responsible for antibody formation to combat antigens? What are two subtypes?
    • lymphocytes
    • B-cells and T-cells
  32. Normal platelet count:
    140,000-440,000

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