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Write the Differences Between P-wave and T-wave - Biology

Write the differences between P-wave and T-wave

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  P-wave T-wave
1 In an electrocardiogram (ECG), the P-wave indicates the activation of the SA node. In an electrocardiogram (ECG), the T-wave represents ventricular relaxation.
2 During this phase, the impulse of contraction is generated by the SA node, causing atrial depolarisation. During this phase, the ventricles relax and return to their normal state.
3 It is of atrial origin. It is of ventricular origin.
Concept: Circulatory Pathways - Electrocardiograph (ECG)
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NCERT Class 11 Biology Textbook
Chapter 18 Body Fluids and Circulation
Q 7.4 | Page 289
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