What does P mean in P waves?

pressure wave Click to see full answer. Keeping this in view, what does P wave mean?The P wave on the ECG represents atrial depolarization, which results in atrial contraction, or atrial systole.Similarly, why is the P wave positive? The first deflection is the P wave associated with right and left atrial depolarization. Wave of atrial repolarization is invisible because of low amplitude. On this count the P wave is always positive in lead II and always negative in lead aVR during sinus rhythm. Just so, what is the P wave and S wave? P-waves and S-waves are body waves that propagate through the planet. P-waves are compression waves that apply a force in the direction of propagation. As the interior of the Earth is almost incompressible, P-waves transmit their energy quite easily through the medium and thus travel quickly.What are characteristics of P waves?P Waves are compressional which means they move through (compress) a solid or liquid by pushing or pulling similar to the way sound travels through the air. The particles of the material a P Wave pushes through move in the direction of the P wave’s energy.

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