ECG Anatomy Dr.Kareem
Anatomy of the Heart - ECG
- 1.
The rapidly conducting fibers that supply the ventricles
- A.
SA node
- B.
AV node
- C.
QRS complex
- D.
Purkinje
- E.
P-R interval
Correct Answer
D. Purkinje -
- 2.
Phase of the cardiac impulse (action potential) that is due to the outflow (effux) of K+
- A.
Repolarization
- B.
Depolarization
- C.
P wave
- D.
T wave
- E.
QRS complex
Correct Answer
A. Repolarization -
- 3.
Part of the ECG that represents ventricular repolarization
- A.
Purkinje
- B.
SA node
- C.
AV node
- D.
P wave
- E.
T wave
Correct Answer
E. T wave -
- 4.
Part of the ECG that indicates the time it takes for the electrical signal to travel from the atrium to the ventricle
- A.
QRS complex
- B.
AV node
- C.
T wave
- D.
P-R interval
- E.
Depolarization
Correct Answer
D. P-R interval -
- 5.
Part of the ECG that indicates atrial depolarization
- A.
P wave
- B.
T wave
- C.
SA node
- D.
AV node
- E.
QRS complex
Correct Answer
A. P wave -
- 6.
The AV valves close in response to
- A.
Rising ventricular pressure during ventricular contraction
- B.
Rising atrial pressure
- C.
Rising pressure in the pulmonary artery and aorta
- D.
Increasing oxygen saturation of the hemoglobin
Correct Answer
A. Rising ventricular pressure during ventricular contraction -
- 7.
What is happening when the ventricles are filling?
- A.
The semilunar valves are open
- B.
The AV valves are closed
- C.
The QRS complex is "happening"
- D.
The ventricles are relaxed
Correct Answer
D. The ventricles are relaxed -
- 8.
Identify this: a quivering ventricular muscle that is unable to pump blood.
- A.
Heart block
- B.
Pericardial effusion
- C.
Friction rub
- D.
Fibrillation
Correct Answer
D. Fibrillation -
- 9.
A prolonged P-R interval means that
- A.
Heart rate is too fast
- B.
Heart rate is too slow
- C.
The signal traveling from the atria to the ventricles is abnormally slow
- D.
There is an ectopic focus
Correct Answer
C. The signal traveling from the atria to the ventricles is abnormally slow -
- 10.
What is the cause of the heart sounds "lubb dupp"?
- A.
Vibrations caused by closure of the valves
- B.
Firing of the SA node
- C.
Movement of blood through holes in the interventricular septum
- D.
Flow of blood through the coronary blood vessels
Correct Answer
A. Vibrations caused by closure of the valves -
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Feb 19, 2014Quiz Edited by
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Feb 18, 2014Quiz Created by
Kareem
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