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(Solved): 2. When during the ECG are action potentials propagating down the bundle branches? a) During the P ...
2. When during the ECG are action potentials propagating down the bundle branches? a) During the P-wave. b) Between the P-wave and the QRS complex. c) During the QRS complex. d) During the T-wave e) Between the T-wave and P-wave.
Expert Answer
The current in the heart first generates in the SA node (called as pacemaker) present in the right atrim. First of all this current is spread over the atrial muscles and lead to depolarisation of both right and left atria or what we call atrial sy