Diastole (diastolic pressure)

The blood pressure when the heart is resting; specifically, the minimum arterial pressure during relaxation and dilatation of the ventricles of the heart when the ventricles fill with blood. The time at which the heart is in a state of relaxation is called diastole.


Blood pressure within the arteries when the heart is in relaxation between contractions.


Lowest arterial pressure reached during any ventricular cycle.


Blood pressure taken at the diastole.


The pressure exerted by the blood against the arterial wall during diastole. This is the lowest blood pressure in the cardiac cycle, so it is the second figure on the normally expressed pressure e.g. 120/70. A normal reading of diastolic pressure in a healthy adult at rest is around 70 mm Hg.


The second and lower blood pressure number, representing the force recorded when the ventricles are relaxed.


Pressure exerted by the blood in the arteries when the heart is filling. Diastolic pressure is represented by the denominator in the blood-pressure fraction.


Diastolic pressure, the lowest level of blood pressure in the main arteries, corresponds to the period between heartbeats. During this phase, the ventricles, which are the lower chambers of the heart, are relaxed and actively filling with blood. In contrast, systolic pressure represents the highest level of blood pressure in the main arteries and occurs when the ventricles contract. This rhythmic fluctuation of blood pressure between diastole and systole reflects the dynamic functioning of the cardiovascular system as the heart efficiently pumps blood throughout the body.


The normal range of blood pressure can vary depending on age and individual factors. However, in the case of a young adult, a typical diastolic pressure is around 80 mmHg (millimeters of mercury), while the systolic pressure is approximately 120 mmHg. It’s worth noting that persistently elevated diastolic pressure is commonly observed in cases of hypertension, a condition characterized by chronically high blood pressure levels. Monitoring and maintaining healthy blood pressure levels are essential for overall well-being and the prevention of potential health complications.


 


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