Diastole and systole refer to when the heart muscles relax and contract. The balance between diastolic and systolic pressure determines a person’s blood pressure. A blood pressure reading ...

Understanding Systolic and Diastolic Blood Pressure Readings. Your blood pressure numbers can go up and down throughout the day, depending on what you are doing.

The murmur of a patent ductus arteriosus is continuous throughout systole and diastole since the aortic pressure (normally 120/80) is always higher than the pulmonary artery pressure ...

Doctors use end-diastolic volume and end-systolic volume to determine stroke volume, or the amount of blood pumped from the left ventricle with each heartbeat.

What Do Systolic and Diastolic Blood Pressure Numbers Mean? When you check your blood pressure, you get two numbers. The first, or top, number, is called systolic blood pressure. The second, or ...