In the normal heart, the _________has the highest rate of discharge and sets the rate of depolarization for the heart as a whole.
A) bundle branches
B) AV node
C) AV bundle
D) SA node
Correct Answer:
Verified
Q3: During exercise, the heart rate _.
A)increases to
Q4: In sequential order, the components of the
Q5: Bradycardia describes a heart rate of_ .
A)less
Q6: The T wave of the ECG represents_
Q7: The QRS complex is associated with _.
A)depolarization
Q9: If the AV node is damaged so
Q10: It the interval between R waves is
Q11: The electrocardiogram (ECG)shows a record of .
A)electrical
Q12: A normal Q- T interval is_ .
A)0.32-
Q13: How does holding the breath affect heart
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