Diastole

The human heart is a remarkable organ responsible for pumping blood throughout the body, delivering oxygen and nutrients while removing waste products. Understanding the cardiac cycle is essential for appreciating how the heart functions, particularly the phases known as ventricular systole and diastole. These two phases play a crucial role in maintaining blood circulation and … Read more

When learning about the heart’s electrical activity, many students and even medical professionals come across the question does the QRS complex represent systole or diastole? The QRS complex is one of the most easily recognizable parts of an electrocardiogram (ECG or EKG), but its exact relationship to the phases of the cardiac cycle often causes … Read more