ANATOMY

Detailed explanation-1: -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-2: -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. When this happens, your ventricles don’t fill with blood as they should, and you may experience pressure buildup in your heart.

Detailed explanation-3: -The diastolic phase is when the heart relaxes and fills with blood. Diastolic heart failure occurs if the left ventricle muscle becomes stiff or thickened. The heart must increase pressure inside the ventricle to fill it.

Detailed explanation-4: -Diastole begins with the closing of the aortic valve (or pulmonic) and ends with the closing of the mitral valve (or tricuspid). This period encompasses the ventricular relaxation and filling. Diastole represents when the blood vessels return blood to the heart in preparation for the next ventricular contraction.

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.