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

7 Questions | By Gawadnephronnnnn | Updated: Mar 21, 2022 | Attempts: 588

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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.