Final answer:
The peaks and valleys of the electrical impulses responsible for the cardiac cycle are known as the P wave, QRS complex, and T wave, which represent atrial depolarization, ventricular depolarization, and ventricular repolarization respectively.
Step-by-step explanation:
The peaks and valleys of the electrical impulses responsible for the cardiac cycle are called P wave, QRS complex, and T wave. These points are recognizable on an electrocardiogram (ECG) and correspond to different phases of the heart's activity: the P wave indicates atrial depolarization, the QRS complex indicates ventricular depolarization, and the T wave indicates ventricular repolarization. These phases are crucial for coordinating the heart's pumping action, ensuring efficient blood circulation throughout the body.
The peaks and valleys of the electrical impulses responsible for the cardiac cycle are called P wave, QRS complex, and T wave. The P wave represents the depolarization of the atria, the QRS complex represents the depolarization of the ventricles, and the T wave represents the repolarization of the ventricles. These recognizable points can be observed on an ECG.