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Draw the internal anatomy of the human heart, explain the double circulation pathway, and interpret P-Q-R-S-T waves in NEB Zoology.
The human circulatory system is one of the most frequently examined topics in Class 12 Zoology.
Break down the cycle into: Auricular systole (0.1s), Ventricular systole (0.3s), and Joint diastole (0.4s). Relate these mechanical events to the electrical depolarization waves on an ECG: P wave (atrial depolarization), QRS complex (ventricular depolarization), and T wave (ventricular repolarization).
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