Oct 30, 2023 · This article will discuss the phases of the cardiac cycle and the underlying physiological principles that govern the process. There will be a brief review of the conducting system of the heart, as well as discussion of the disorders that affect the cardiac cycle.

Aug 13, 2023 · The human cardiac cycle can be broken down into four main phases; the atrial systole, the ventricular systole, the atrial diastole, and the ventricular diastole. There is an intermediary phase called the protodiastole phase marking the end of the systole and the beginning of the diastole phase.

Nov 11, 2019 · There are two phases of the cardiac cycle: The diastole phase and the systole phase. In the diastole phase, heart ventricles relax and the heart fills with blood. In the systole phase, the ventricles contract and pump blood out of the heart to arteries.

Mar 28, 2024 · Cardiac cycle phases ensure that the heart efficiently pumps blood and maintain the circulation of oxygenated blood throughout the body. Systole of the cardiac cycle refers to the contraction of heart muscles that result in the pumping of the blood.

Feb 12, 2017 · The two main phases of the cardiac cycle are systole and diastole, and they follow each other in sequence. Each stage in the cardiac cycle contains important steps which direct the flow of blood properly.

Oct 3, 2022 · Cardiac cycle events can be divided into diastole and systole. Diastole represents ventricular filling, and systole represents ventricular contraction/ejection. Systole and diastole occur in both the right and left heart, though with very different pressures (see …

There are two basic phases of the cardiac cycle: diastole (relaxation and filling) and systole (contraction and ejection). Diastole represents the period when the ventricles are relaxed (not contracting).

Jan 16, 2025 · Explore the intricate phases of the cardiac cycle, enhancing your understanding of heart function and its vital role in circulatory health.

Figure 19.3.1 – Overview of the Cardiac Cycle: The cardiac cycle begins with atrial systole and progresses to ventricular systole, atrial diastole, and ventricular diastole, when the cycle begins again. Correlations to the ECG are highlighted.

Define cardiac cycle, systole, and diastole. Describe the phases of the cardiac cycle including ventricular filling, isovolumic contraction, ventricular ejection, and isovolumic relaxation. Explain how atrial systole is related to ventricular filling.