Diastole

Diastole is one of two periods of the cardiac cycle in which the heart muscle relaxes and the chambers of the heart fill with blood. In contrast to diastole, systole is the period of contraction of the heart muscle when blood is ejected from the heart into the arterial system.

Diastole is usually divided into two stages: early diastole and late diastole. During early diastole, the moment immediately after systole, the heart muscle relaxes and blood begins to flow from the atria into the ventricles. During late diastole, when the ventricles are completely relaxed, blood continues to flow into the ventricles and fills them to their maximum level before the next systole.

The term is commonly used to refer to the ventricular diastole, which lasts approximately 0.5 seconds at a normal heart rate of approximately 70 beats per minute. During times of arousal, such as during exercise or stress, this period is shortened and the heart rate increases.

Blood pressure also changes during diastole. Systolic pressure is the pressure that occurs in the arteries during systole, when blood is pumped out of the heart. Diastolic pressure is the pressure that occurs in the arteries during diastole, when the heart is relaxed and blood is filling it. Typically, diastolic pressure is lower than systolic pressure.

Diastolic is an adjective that refers to diastole or diastolic pressure. For example, diastolic pressure is the pressure in the arteries during diastole.

In general, diastole is an important period of the cardiac cycle that allows the heart muscle to rest and refill with blood before the next contraction. It also plays a role in regulating blood pressure and ensuring efficient blood circulation throughout the body.

Diastole is the period between two contractions of the heart, when the chambers are filled with blood and the heart muscle is relaxed. This process usually refers to ventricular diastole, which lasts about 0.5 seconds at a normal heart rate of about 70 beats per minute.

During arousal, the diastole period may shorten and the heart rate may increase.

Diastolic pressure is the pressure of blood in the arteries during diastole, when the heart is filled with blood and is not contracting. This pressure is usually around 60-80 mm Hg. Art.

Systolic pressure, on the other hand, is determined by the pressure of the blood in the arteries during systole, which is when the heart contracts and pushes blood into the arteries. Systolic pressure is usually higher than diastolic and can reach 120-140 mmHg. Art.

**Diastole** is *this* period of relaxation of the heart muscle, allowing the chambers of the heart to fill with blood. This term is used to refer to the time between contractions of the ventricles of the heart (ventricular diastole), which is normally about 0.5 seconds. With normal heart rhythms, the heart rate is approximately 72 beats per minute, and with excitement this interval shortens. As the heart relaxes, the chambers fill with blood, allowing it to prepare for the next contraction cycle. However, during physical activity or in the case of heart disease, the diastole period can be shortened, which can lead to a lack of blood supply to organs and tissues. Long-term diastolic dysfunction of the heart muscle can lead to the development of various diseases such as heart failure and arrhythmia. To prevent the development of heart failure, it is necessary to control blood pressure and cholesterol levels in the blood, exercise and lead a healthy lifestyle.