Chapter 32

26 Questions  I  By RiseAsOne
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 Chapter 32
Circulation

  
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Questions and Answers

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  • 1. 

    The posterior inferior vena cava is indicated by the letter _____.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E


  • 2. 
    Arteries carry blood _____.
    • A. 

      Away from capillaries

    • B. 

      Away from the heart and away from the lungs

    • C. 

      To the heart and away from the lungs

    • D. 

      To the heart only

    • E. 

      Away from the heart only


  • 3. 
    Blood returns to the heart via the _______.
    • A. 

      Aorta

    • B. 

      Pulmonary arteries

    • C. 

      Pulmonary veins

    • D. 

      Aorta and pulmonary arteries

    • E. 

      Aorta and pulmonary veins


  • 4. 
    From the pulmonary veins, blood flows to the _______.
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Aorta

    • D. 

      Capillaries of the lungs

    • E. 

      Posterior vena cava


  • 5. 
    From the anterior vena cava, blood flows to the ______.
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Aorta

    • D. 

      Capillaries of the lungs

    • E. 

      Posterior vena cava


  • 6. 
    From the capillaries of the abdominal organs and hind limbs, blood flows to the ________.
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Aorta

    • D. 

      Capillaries of the lungs

    • E. 

      Posterior vena cava


  • 7. 
    Carbon dioxide enters the blood at the _______.
    • A. 

      Capillaries of the lungs

    • B. 

      Capillaries of the abdominal organs

    • C. 

      Capillaries of the hind limbs

    • D. 

      Capillaries of the head and forelimbs

    • E. 

      Capillaries of the head, forelimbs, abdominal organs, and hind limbs


  • 8. 
    The ________ has(have) the thinnest walls. 
    • A. 

      Aorta

    • B. 

      Capillaries

    • C. 

      Posterior vena cava

    • D. 

      Pulmonary artery

    • E. 

      Right ventricle


  • 9. 
    Blood pressure is the highest in the _______.
    • A. 

      Aorta

    • B. 

      Posterior vena cava

    • C. 

      Anterior vena cava

    • D. 

      Pulmonary artery

    • E. 

      Capillaries


  • 10. 

    Most gas exchange with blood vessels occurs across the walls of the structure indicated by the letter ______.
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

    • E. 

      E


  • 11. 
    Blood returns to the heart via the _______.
    • A. 

      Aorta

    • B. 

      Pulmonary arteries

    • C. 

      Pulmonary veins

    • D. 

      Aorta and pulmonary arteries

    • E. 

      Aorta and pulmonary veins


  • 12. 
    From the pulmonary veins, blood flows to the ________.
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Aorta

    • D. 

      Capillaries of the lungs

    • E. 

      Posterior vena cava


  • 13. 
    From the anterior vena cava, blood flows to the ________.
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Aorta

    • D. 

      Capillaries of the lungs

    • E. 

      Posterior vena cava


  • 14. 
    From the capillaries of the abdominal organs and hind limbs, blood flows to the ________.
    • A. 

      Right atrium

    • B. 

      Left atrium

    • C. 

      Aorta

    • D. 

      Capillaries of the lungs

    • E. 

      Posterior vena cava


  • 15. 

    • A. 1
    • A.
    • B. 2
    • B.
    • C. 3
    • C.
    • D. 4
    • D.
    • E. 5
    • E.
    • F. 6
    • F.
    • G. 7
    • G.
    • H. 8
    • H.
    • I. 9
    • I.
    • J. 10
    • J.

  • 16. 
    What is the advantage of a closed circulatory system over an open one?
    • A. 

      A closed system carries more blood

    • B. 

      A closed system moves blood more efficiently

    • C. 

      Blood flows more slowly in a closed system

    • D. 

      There are more blood cells in a closed system

    • E. 

      In a closed system, the blood comes nearer to each cell


  • 17. 
    The fluid portion of the blood is called ________.

  • 18. 
    Platelets are large cells that aid in blood clotting. True or False?
    • A. 

      True

    • B. 

      False


  • 19. 
    All of the following are true of the SA node EXCEPT that it
    • A. 

      Directly stimulates the ventricles

    • B. 

      Is the pacemaker

    • C. 

      Directly stimulates the atria

    • D. 

      Is influenced by nerve impulses and hormones


  • 20. 
    The most abundant cell type in blood is the 
    • A. 

      Leukocyte

    • B. 

      Neutrophil

    • C. 

      Platelet

    • D. 

      Erythrocyte

    • E. 

      Basophil


  • 21. 
    How many molecules of oxygen can bind with one molecule of human hemoglobin?
    • A. 

      3

    • B. 

      4

    • C. 

      1

    • D. 

      2

    • E. 

      5


  • 22. 
    Each of the following types of white blood cells is found within the circulatory system EXCEPT:
    • A. 

      Macrophages

    • B. 

      Leukocytes

    • C. 

      Lymphocytes

    • D. 

      Monocytes


  • 23. 
    Erythrocytes are produced in the
    • A. 

      Spleen

    • B. 

      Bone marrow

    • C. 

      Liver

    • D. 

      Heart


  • 24. 
    White blood cells
    • A. 

      Carry oxygen in blood

    • B. 

      Clot blood

    • C. 

      Protect the body from microbes

    • D. 

      Are formed in the spleen


  • 25. 
    All of the following are functions of the lymphatic system EXCEPT:
    • A. 

      Returning dissolved materials to the circulation

    • B. 

      Defending the body

    • C. 

      Returning fluid to the circulatory system

    • D. 

      Transporting fats to the circulatory system

    • E. 

      Transporting oxygen to the lungs


  • 26. 
    What two organs are considered to be part of the lymphatic system?
    • A. 

      Heart and lungs

    • B. 

      Pancreas and liver

    • C. 

      Spleen and thymus

    • D. 

      Gall bladder and kidneys

    • E. 

      Thalamus and hypothalamus


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