The AV node
A) is the normal pacemaker of the heart
B) is the only electrical connection between the atria and the ventricles
C) rapidly conducts impulses from the atria to the ventricles so that they contract simultaneously
D) is not innervated by the vagus nerve
E) has the slowest rate of depolarization in the heart
Correct Answer:
Verified
Q23: The direction of impulses through the conduction
Q24: An ectopic focus is the place where
A)an
Q25: The refractory period of cardiac muscle
A)lasts almost
Q26: The normal pacemaker of the heart is
Q27: The SA node is the heart's normal
Q29: The function of the atrioventricular node is
Q30: Which is the normal sequence of the
Q31: Which of the following is not occurring
Q32: Why can't tetanus occur in the heart?
A)There
Q33: Extrasystole of the heart means that it
A)beats
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