Multiple Choice
What structure serves as the backup pacemaker for the heart?
A) atrioventricular (AV) node
B) sinoatrial node
C) bundle of His
D) Purkinje fibers
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q9: Which of the following axis placements represents
Q14: What is the width of the normal
Q15: Your patient has a normal ECG reading.
Q16: Which of the following criteria applies to
Q18: Which of the following is NOT a
Q21: What is a possible serious complication associated
Q22: An occasional premature ventricular complex (PVC) is
Q23: On inspection of an ECG rhythm strip
Q24: What medication is most useful for the
Q29: The QRS of an ECG falls on