2025年1月2日 · Diastole and systole are two phases of the cardiac cycle. They occur as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the body.

Systole (/ ˈ s ɪ s t əl i / SIST-ə-lee) is the part of the cardiac cycle during which some chambers of the heart contract after refilling with blood. [1] Its contrasting phase is diastole , the relaxed phase of the cardiac cycle when the chambers of the heart are refilling with blood.

2023年10月30日 · Overview and definition of the cardiac cycle, including phases of systole and diastole, and Wiggers diagram. Click now to learn more at Kenhub!

Systole, period of contraction of the ventricles of the heart that occurs between the first and second heart sounds of the cardiac cycle (the sequence of events in a single heart beat). Systole causes the ejection of blood into the aorta and pulmonary trunk.

2024年7月29日 · Systole refers to the period when your heart contracts and pushes blood out to the rest of your body. Diastole is when the heart relaxes and refills with blood.

2023年9月3日 · The main difference between diastole and systole is that diastole occurs when the heart relaxes after contraction, whereas systole occurs when the heart contracts to pump the blood out. Diastole and systole are two phases of the heart.

Systole occurs when the heart contracts, pumping blood out, while diastole takes place when the heart relaxes after contraction. The cardiac cycle is the time period comprising all the events from one heart contraction to the start of the next heart contraction.

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.