What Happens in the Systole Phase

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.

What happens at the beginning of systole?

The cardiac cycle at the point of beginning a ventricular systole, or contraction: 1) newly oxygenated blood (red arrow) in the left ventricle begins pulsing through the aortic valve to supply all body systems; 2) oxygen-depleted blood (blue arrow) in the right ventricle begins pulsing through the pulmonic (pulmonary) …

What is systole quizlet?

Systole is contraction of the muscle while diastole is relaxation of the muscle. The contraction and relaxation of the ventricles are normally described with the term systole and diastole.