Dr Gawad Physiology Course Online Exam - CVS – Course Lecture 4 – Cop & Cardiac Reserve

7 Questions | Total Attempts: 577

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Dr Gawad Physiology Course Online Exam - CVS  Course Lecture 4  Cop & Cardiac Reserve - Quiz

7 MCQs (Only one correct answer)Each MCQ: 1 mark, Total mark: 7 (you will get your result immediately by the web)Allowed time: 8 minGood Luckdr Mohammed Abel Gawad


Questions and Answers
  • 1. 
    The cardiac output divided by the heart rate equals the:
    • A. 

      Cardiac efficiency.

    • B. 

      Cardiac index.

    • C. 

      Arterial blood pressure.

    • D. 

      Stroke volume.

  • 2. 
    All the following decrease the cardiac output except :
    • A. 

      Increased vagal activity

    • B. 

      Beta-adrenergic receptor blockers.

    • C. 

      Increased end-diastolic volume

    • D. 

      Standing up from the recumbent position.

  • 3. 
    The cardiac output :
    • A. 

      Is the combined blood volumes pumped by both ventricles /beat

    • B. 

      Increases when there is overstretch of the ventricle.

    • C. 

      Matches the venous return in a normal heart.

    • D. 

      Is determined by the end-systolic pressure x heart rate.

  • 4. 
    The cardiac index is the ratio of the:
    • A. 

      Cardiac output and body surface area.

    • B. 

      Cardiac output and body weight.

    • C. 

      Cardiac output and work of the heart.

    • D. 

      Stroke volume and body height.

  • 5. 
    The cardiac output :
    • A. 

      Is increased when the heart rate increases.

    • B. 

      Is reflexly reduced on exposure to a high temperature.

    • C. 

      Is about 11% of maximum when the subject is at rest.

    • D. 

      Does not change with age or sex.

  • 6. 
    The effects of gravity on the venous return are counteracted mainly by:
    • A. 

      The pressure gradient.

    • B. 

      Skeletal muscle contraction

    • C. 

      Arteriolar V. D.

    • D. 

      Increased heart and respiratory rates.

  • 7. 
    During deep inspiration, the COP usually:
    • A. 

      Increases in volume.

    • B. 

      Decreases in volume

    • C. 

      Shows pulsus alternans.

    • D. 

      None of the above.

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