Ch. 17 - Blood & Blood Vessels (17.8 Only Pg 590-591)

15 Questions | Total Attempts: 255

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Blood Vessels Quizzes & Trivia

The blood and blood vessels work together to service the cells of the body by transporting blood throughout the body. There are four major blood vessels that create blood circulation within the heart. Take this quiz on chapter 17 on blood and blood vessels from chapter 17. 8 pages 590-591. All the best


Questions and Answers
  • 1. 
    Platelets function in all of the following, except
    • A. 

      Dissolving a formed clot.

    • B. 

      Forming temporary clump in injured areas.

    • C. 

      Contraction after clot formation.

    • D. 

      Initiating the clotting process.

    • E. 

      Releasing chemicals that stimulate clotting.

  • 2. 
    ________ involves a cascade of reactions leading to the conversion of fibrinogen to fibrin.
    • A. 

      Vascular spasm

    • B. 

      The platelet phase

    • C. 

      Retraction

    • D. 

      Coagulation

    • E. 

      Fibrinolysis

  • 3. 
    The conversion of fibrinogen to fibrin is catalyzed by the enzyme
    • A. 

      Fibrinogen-converting enzyme.

    • B. 

      Plasmin.

    • C. 

      Factor VIII.

    • D. 

      Thrombin.

    • E. 

      Prothrombinase.

  • 4. 
    The extrinsic pathway of coagulation is initiated by the
    • A. 

      Sticking of platelets to damaged tissue.

    • B. 

      Activation of Factor VII exposed to collagen.

    • C. 

      Release of tissue factor (Factor III) by damaged endothelium.

    • D. 

      Release of heparin from the liver.

    • E. 

      Conversion of prothrombin to thrombin.

  • 5. 
    The intrinsic pathway of coagulation is activated by the
    • A. 

      Sticking of platelets to damaged tissue.

    • B. 

      Activation of proenzymes exposed to collagen.

    • C. 

      Release of tissue factor (Factor III) by damaged endothelium.

    • D. 

      Release of heparin from the liver.

    • E. 

      Conversion of prothrombin to thrombin.

  • 6. 
    The common pathway of coagulation begins with the
    • A. 

      Sticking of platelets to damaged tissue.

    • B. 

      Activation of a proenzyme exposed to collagen.

    • C. 

      Release of tissue factor by damaged endothelium.

    • D. 

      Conversion of Factor X to prothrombinase.

    • E. 

      Conversion of fibrinogen to fibrin.

  • 7. 
    The process of fibrinolysis
    • A. 

      Activates fibrinogen.

    • B. 

      Draws torn edges of damaged tissue closer together.

    • C. 

      Dissolves clots.

    • D. 

      Forms emboli.

    • E. 

      Forms thrombi.

  • 8. 
    The enzyme that can digest fibrin and dissolve a clot is
    • A. 

      Thrombin.

    • B. 

      Plasmin.

    • C. 

      Heparin.

    • D. 

      Fibrinase.

    • E. 

      Phosphokinase.

  • 9. 
    Tissue factor (Factor III) is a factor in the ________ pathway.
    • A. 

      Extrinsic

    • B. 

      Intrinsic

    • C. 

      Common

    • D. 

      Retraction

    • E. 

      Fibrinolytic

  • 10. 
    Platelet factor (PF-3) is a factor in the ________ pathway.
    • A. 

      Extrinsic

    • B. 

      Intrinsic

    • C. 

      Common

    • D. 

      Retraction

    • E. 

      Fibrinolytic

  • 11. 
    Which of these descriptions best matches the term platelets?
    • A. 

      Adhere to collagen beneath endothelium

    • B. 

      Helper cells are one type

    • C. 

      Produce antibodies in response to antigens

    • D. 

      Kill bacteria using hydrogen peroxide

    • E. 

      Often elevated in allergic individuals

  • 12. 
    Some rat poisons contain a toxin that blocks the liver's ability to utilize vitamin K. Animals that consume this poison would die of
    • A. 

      Anemia.

    • B. 

      Acidosis.

    • C. 

      Hemorrhage.

    • D. 

      Thrombocytopenia.

    • E. 

      Starvation.

  • 13. 
    A substance that activates plasminogen might be useful to
    • A. 

      Cause clots to form faster.

    • B. 

      Cause clot dissolution to proceed faster.

    • C. 

      Initiate clot formation.

    • D. 

      Mimic erythropoietin.

    • E. 

      Recruit neutrophils to an infection.

  • 14. 
    How would removal of calcium ions from a blood sample affect coagulation?
    • A. 

      The coagulation pathway would be lacking a required cofactor at many steps.

    • B. 

      Coagulation would be prevented.

    • C. 

      There would be no important effect because magnesium can substitute for calcium

    • D. 

      The coagulation pathway would be lacking a required cofactor at many steps and coagulation would be prevented.

    • E. 

      The coagulation pathway would be lacking a required cofactor at many steps and no important effect because magnesium can substitute for calcium.

  • 15. 
    Platelets are stored as a reserve in case of hemorrhage in
    • A. 

      The splenic vein.

    • B. 

      The splenic artery.

    • C. 

      The spleen.

    • D. 

      Other vascular organs.

    • E. 

      The spleen and other vascular organs.

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