A) R-Repolarisation of ventricles
B) S-Start of systole
C) T-End of diastole
D) P-Depolarisation of the atria
Correct Answer: D
Solution :
In ECG, P-wave indicates impulse of contraction generated by SA-node and :I spreads in atria causing atrial depolarisarion- T- wave is the most constant and conspicuous wave having the tallest amplitude. It is the firs positive deflection during ventricula- depolarisation. S-wave is the next downward deflection constant but often inconspicuous. T- wave is repolarisation wave of ventricular relaxation.
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