MICROANATOMY

Detailed explanation-1: -During diastole, your lower heart chambers (ventricles) relax as they fill with blood. Diastolic dysfunction may occur when your ventricles are stiff and don’t relax properly.

Detailed explanation-2: -The diastolic blood pressure is the minimum pressure experienced in the aorta when the heart is relaxing before ejecting blood into the aorta from the left ventricle (approximately 80 mmHg). Normal pulse pressure is, therefore, approximately 40 mmHg.

Detailed explanation-3: -During the peak of systole, the aortic and pulmonary semilunar valves are forced open to allow blood to exit the ventricles and enter these vessels. The relaxation phase is called ventricular diastole, and during this period pressure in the aorta and pulmonary arteries falls to lower values called diastolic pressure.

Detailed explanation-4: -Diastole is when the heart muscle relaxes. When the heart relaxes, the chambers of the heart fill with blood, and a person’s blood pressure decreases.

Detailed explanation-5: -The cardiac cycle encompasses systole and diastole. Regardless of the exact time limits of these periods, it is generally accepted that systolic function relates with the ability of the ventricle to contract and eject, while diastolic function reflects its ability to relax and fill.