Chapter 29- Take 2

25 Questions | Total Attempts: 39

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Blood Quizzes & Trivia

Questions and Answers
  • 1. 
    Oxyegenated blood flows through the
    • A. 

      Superior vena cava

    • B. 

      Pulmonary veins

    • C. 

      Pulmonary arteries

    • D. 

      Coronary veins

  • 2. 
    The hepatic vein:
    • A. 

      Carries blood from the vena cava to the liver

    • B. 

      Carries blood from the liver to the vena cava

    • C. 

      Carries blood from the aorta to the liver

    • D. 

      Carries blood from the liver to the aorta

  • 3. 
    Insulin protects vascular tissue by:
    • A. 

      Increasing growth of vascular smooth muscle cells

    • B. 

      Increasing endothelial cell producation of nitric oxide

    • C. 

      Increasing the effect of platelet- derived growth factor

    • D. 

      Increasing the binding of monocytes/macrophages to the vessal walls

  • 4. 
    The pericardial space is found between the
    • A. 

      The mayocardium and the parietal pericardium

    • B. 

      Endocardium and the visceral perocariu,

    • C. 

      Visceral and parietal pericardia

    • D. 

      Visceral and the epicardial pericardia

  • 5. 
    The QRS complex of the ECG represents:
    • A. 

      Atrial depolorization

    • B. 

      Ventricular depolarization

    • C. 

      Atrial contraction

    • D. 

      Ventricular repolarization

    • E. 

      Atrial repolarization

  • 6. 
    A person who has a heart rate of 100 bpm, a systolic b/P of 200 mm, and a stroke volume of 40 ml would have an average cardiac output of:
    • A. 

      0.5ml

    • B. 

      5L

    • C. 

      4ml

    • D. 

      8000 ml

    • E. 

      None of the above

  • 7. 
    During atrial systole, the:
    • A. 

      AV valves are open

    • B. 

      Atria are filling

    • C. 

      Ventricles are emptying

    • D. 

      Semilunar valves are open

  • 8. 
    Which of the following does not significantly affect heart rate?
    • A. 

      Temperature

    • B. 

      Age

    • C. 

      Presence of heart murmur

    • D. 

      Na+ and K+ ions

  • 9. 
    One cardiac cycle:
    • A. 

      Has a duration that changes if the hear rate changes

    • B. 

      Usually requires less than 1 second to complete

    • C. 

      Is equal to stroke volume times heart rate

    • D. 

      Pumps approx 5 l of blood

    • E. 

      Both a and b are correct

  • 10. 
    Compared with arteries, veins:
    • A. 

      Have a larger diameter

    • B. 

      Are thickly coated

    • C. 

      Recoil quickly after distention

    • D. 

      Both a and b are correcct

  • 11. 
    When the intraventricular pressure becomes greater than the pressure in the pulmonary arteries, the:
    • A. 

      Semilunar valves will open

    • B. 

      The semilunar valves with close

    • C. 

      AV valves will open

    • D. 

      AV valves will close

  • 12. 
    The two distinct heart sounds, lubb and dubb, are most directly related to
    • A. 

      Pulse pressure in the aorta

    • B. 

      The contraction of the ventricles

    • C. 

      The turbulance from the closing of the valves

    • D. 

      Contraction af the atria

  • 13. 
    Normal end- diastolic pressure within the left ventricle is in the range of:
    • A. 

      100-140 mm/hg

    • B. 

      15-28 mmhg

    • C. 

      0-8 mmHg

    • D. 

      4-12 mmHg

  • 14. 
    The Frank Starling law of the heart, involves the relationship between the:
    • A. 

      Length of the cardiac muscle fiber and the strength of contraction

    • B. 

      Stroke volume and arterial resistance

    • C. 

      Rapidity of nerve conduction and stroke volume

    • D. 

      Systolic rate and cardiac output

  • 15. 
    Blood pressure is measured by the:
    • A. 

      Pressure exerted on the ventricular walls during systole

    • B. 

      Pressure exerted by the blood on the wall of any blood vessel

    • C. 

      Pressure exerted on arteries by the blood

    • D. 

      Product of the stroke volume times heart rate

  • 16. 
    The heartbeat is initiated by the:
    • A. 

      Coronary sinus

    • B. 

      Arterioventricular bundle

    • C. 

      Right ventricle

    • D. 

      SA node

    • E. 

      AV node

  • 17. 
    If the sypathetic nervous system stimulation of the heart predominates over parasympathetic nervous stimulation, the heart will:
    • A. 

      Increase its rate

    • B. 

      Contract with greater force and at a slower rate

    • C. 

      Decrease its rate and force of contraction

    • D. 

      Contract with less force and at a higher rate

  • 18. 
    Adrenomedullin (ADM):
    • A. 

      Exhibit powerful vasoconstriction activity

    • B. 

      Is present only in cardiovascular tissue

    • C. 

      Mediates sodium reabsorption

    • D. 

      Exhibits powerful vasodilation activity

  • 19. 
    Which factor might increase resistance to the flow of blood through the blood vessels?
    • A. 

      An increased inner radius or diameter of the blood vessel

    • B. 

      A decreased number of capilllaries

    • C. 

      A decreased blood viscosity

    • D. 

      A decreased number of red blood cells

  • 20. 
    Nitric oxide is:
    • A. 

      A potent vasodilator

    • B. 

      A potent vasoconstrictor

    • C. 

      Endothelium-derived relaxing factor (EDRF)

    • D. 

      An inhibitor of platelet adherence to the endothelium

    • E. 

      Both a and c are correct

  • 21. 
    Which of the following is true?
    • A. 

      Lymphatic walls consist of multiple layers fo flattened endothelial cells

    • B. 

      Lymph from the entire body, except the upper right quadrant, eventually drains into the thoracic duct

    • C. 

      Lymph contains more proteins than does blood plasma

    • D. 

      The lymphatic system, like the circulatory system, is a closed circuit

  • 22. 
    Which events are part of the normal cardiac cycle
    • A. 

      The right atrium and right ventricles contract simultanously

    • B. 

      The two atria contract simultaneously while the two ventricles relax

    • C. 

      The two ventricles contract simultanously while the two atria relax

    • D. 

      Both the ventricles and the atria contract simultaneously to increase cardiac output

  • 23. 
    What factors assist the return of venous blood to the heart
    • A. 

      Peripheral pooling

    • B. 

      Venous valves

    • C. 

      Increased intra-abdominal pressure

    • D. 

      Respiratory movements

    • E. 

      Contraction of skeletal muscles

  • 24. 
    The correect sequence as blood travels through the following stuctures is: a) Pulmonary veins b) Pulmonary arteries c) lungs d) right ventricle e) left atrium
    • A. 

      E, a, b, c, d

    • B. 

      D, c, a, e, b

    • C. 

      D, b, c, a, e

  • 25. 
    The correct sequene of an electrical impulse through the hearts conduction  sytstem: a) Arterioventricular bundle b) AV node c) purkinje fibers d) SA node e) Right and left bundle branches
    • A. 

      B, c, d, e, a

    • B. 

      E, c, b, a, d

    • C. 

      D, b, a, e, c

    • D. 

      D, b, c , a , e

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