* P wave represents atrial depolarization: The P wave on an electrocardiogram (ECG) signifies the electrical activation (depolarization) of the atria, the upper chambers of the heart. This depolarization triggers atrial contraction.
* Resting state: The resting state of the heart, before any electrical activity, is referred to as polarization. This is the state where the cells are electrically charged, ready to be stimulated.
* Depolarization is the active phase: Depolarization is the process of electrical activation, where the cell's charge changes. In the P wave, the atria are depolarizing, moving from their resting polarized state to an activated state.
To summarize:
* P wave = Atrial depolarization (active phase)
* Resting state = Polarization
Let me know if you have any further questions about ECGs or heart function!
