Diastole is defined by the following characteristics: 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.
Where is the blood when diastole occurs?
Beginning with all chambers in diastole, blood flows passively from the veins into the atria and past the atrioventricular valves into the ventricles. The atria begin to contract (atrial systole), following depolarization of the atria, and pump blood into the ventricles.
What are the 4 phases of diastole?
Let's recall the 4 stages of diastole:
- Isovolumeic Relaxation.
- Rapid Filling.
- Diastasis.
- Atrial Contraction.
