Bio Ch18b

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Author:
eddardofwinter
ID:
268831
Filename:
Bio Ch18b
Updated:
2014-04-01 18:48:21
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Bio
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school
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mc
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  1. A woman's first pregnancy is normal but her second pregnancy results in hemolytic disease of the newborn (HDN), or erythroblastosis fetalis. The second child needed a transfusion to completely replace the agglutinating blood. The mother is most likely type _____ and both children are mostlikely _____.
    A. AB, Rh-positive; O, Rh-positive
    B. O, Rh-negative; AB, Rh-negative
    C. AB, Rh-positive; O, Rh-negative
    D. A, Rh-positive; B, Rh-negative
    E. A, Rh-negative; B, Rh-positive
    E. A, Rh-negative; B, Rh-positive
    (this multiple choice question has been scrambled)
  2. These are the least abundant formed elements.
    A. platelets
    B. neutrophils
    C. basophils
    D. eosinophils
    E. erythrocytes
    C. basophils
    (this multiple choice question has been scrambled)
  3. These are the most abundant agranulocytes.
    A. macrophages
    B. lymphocytes
    C. eosinophils
    D. neutrophils
    E. monocytes
    B. lymphocytes
    (this multiple choice question has been scrambled)
  4. The differential count of ______________ typically increases in response to bacterial infections.
    A. erythrocytes
    B. basophils
    C. neutrophils
    D. eosinophils
    E. monocytes
    C. neutrophils
    (this multiple choice question has been scrambled)
  5. ___________ aid in the body's defense processes by secreting histamine (vasodilator) and heparin (anticoagulant).
    A. Monocytes
    B. Neutrophils
    C. Platelets
    D. Eosinophils
    E. Basophils
    E. Basophils
    (this multiple choice question has been scrambled)
  6. Leukopoiesis begins with the differentiation of
    A. pluripotent stem cells (PPSCs).
    B. precursor cells.
    C. colony-forming units (CFUs).
    D. myeloblasts.
    E. lymphoblasts.
    A. pluripotent stem cells (PPSCs).
    (this multiple choice question has been scrambled)
  7. Some lymphocytes can survive for
    A. weeks.
    B. days.
    C. decades.
    D. months.
    E. years.
    C. decades.
    (this multiple choice question has been scrambled)
  8. A total count above ____________ WBCs/μL is called leukocytosis.
    A. 100,000
    B. 1,000
    C. 5,000
    D. 50,000
    E. 10,000
    E. 10,000
    (this multiple choice question has been scrambled)
  9. All these can cause leukopenia except
    A. dehydration
    B. immunosuppressant drugs
    C. acquired immunodeficiency syndrome (AIDS).
    D. lead poisoning
    E. radiation therapy.
    A. dehydration
    (this multiple choice question has been scrambled)
  10. Platelets do not secrete
    A. procoagulants (clotting factors).
    B. chemicals that attract neutrophils.
    C. thrombopoietin.
    D. vasoconstrictors.
    E. growth factors.
    C. thrombopoietin.
    (this multiple choice question has been scrambled)
  11. The cessation of bleeding is specifically called
    A. hemostasis.
    B. platelet plug formation.
    C. vascular spasm.
    D. homeostasis.
    E. blood clotting (coagulation).
    A. hemostasis.
    (this multiple choice question has been scrambled)
  12. Thromboplastin
    A. acts as a potent vasoconstrictor to reduce blood loss.
    B. initiates the intrinsic pathway of coagulation.
    C. initiates the extrinsic pathway of coagulation.
    D. converts prothrombin into thrombin.
    E. dissolves the clot after the tissue has healed.
    C. initiates the extrinsic pathway of coagulation.
    (this multiple choice question has been scrambled)
  13. When a clot is no longer needed, fibrin is dissolved by
    A. kallikrein.
    B. plasmin.
    C. prothrombin.
    D. platelet-derived growth factor (PDGF).
    E. thromboplastin.
    B. plasmin.
    (this multiple choice question has been scrambled)
  14. All of these prevent the spontaneous formation of a clot except
    A. the presence of heparin in plasma.
    B. the smooth prostacyclin-coated endothelium of blood vessels.
    C. the dilution of thrombin when blood flows at a normal rate.
    D. the presence of tissue thromboplastin.
    E. the presence of antithrombin in plasma.
    D. the presence of tissue thromboplastin.
    (this multiple choice question has been scrambled)
  15. Platelets release ____________, a chemical vasoconstrictor that contributes to the vascular spasm.
    A. serotonin
    B. prostacyclin
    C. thromboplastin
    D. heparin
    E. thrombin
    A. serotonin
    (this multiple choice question has been scrambled)
  16. The structural framework of the blood clot is formed by
    A. a thrombin polymer.
    B. soluble fibrin.
    C. a fibrinogen polymer.
    D. soluble fibrinogen.
    E. a fibrin polymer.
    E. a fibrin polymer.
    (this multiple choice question has been scrambled)
  17. Most strokes and heart attacks are caused by the abnormal clotting of blood in an unbroken vessel. Moreover, a piece of the ____________ (clot) may break loose and begin to travel in the bloodstream as a(n) ______________.
    A. embolism; thrombus
    B. thrombus; embolus
    C. thrombosis; plaque
    D. plaque; thrombus
    E. plaque; embolus
    B. thrombus; embolus
    (this multiple choice question has been scrambled)
  18. __________________ participates in the extrinsic mechanism only.
    A. Thromboplastin
    B. Prothrombin activator
    C. Prothrombin
    D. Thrombin
    E. Calcium
    A. Thromboplastin
    (this multiple choice question has been scrambled)
  19. Most clotting factors are synthesized in the
    A. red bone marrow.
    B. kidneys.
    C. spleen.
    D. liver.
    E. perivascular tissue.
    D. liver.
    (this multiple choice question has been scrambled)

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