The following are true about cardiac contraction: a. the P wave initiates the atrial contraction b. atrial contribution to ventricular filling is most effective at fast heart rate. c. b wave is generated by atrial contraction d. fourth heart sound occurs during atrial contraction

The following are true about cardiac contraction:
a. the P wave initiates the atrial contraction
b. atrial contribution to ventricular filling is most effective at fast heart rate.
c. b wave is generated by atrial contraction
d. fourth heart sound occurs during atrial contraction
by

1 Answer

Answer :

fourth heart sound occurs during atrial contraction
by

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