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: -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-3: -Diastole (/daɪˈæstəli/ dy-AST-ə-lee) is the relaxed phase of the cardiac cycle when the chambers of the heart are re-filling with blood. The contrasting phase is systole when the heart chambers are contracting. Atrial diastole is the relaxing of the atria, and ventricular diastole the relaxing of the ventricles.

Detailed explanation-4: -Once the heart contracts, the cardiac ventricles momentarily relax for it to be refilled with blood preparing for the next contraction. This phase of ventricular relaxation is referred to as diastole, the blood pressure at the time of diastole is referred to as diastolic blood pressure.

Detailed explanation-5: -Diastole (pronounced /daɪˈæstəliː/) is the time during a heart beat when the heart fills with blood after a contraction. The contraction of the heart is called systole and is the opposite of diastole. The term diastole comes from the Greek word . This means expanding or opening.