Which event change is typical during diastole? A) Decreased heart chamber volume. B) Blood filling the atria and ventricles. C) Closing of the atrioventricular valves. D) Increased... Which event change is typical during diastole? A) Decreased heart chamber volume. B) Blood filling the atria and ventricles. C) Closing of the atrioventricular valves. D) Increased pressure in the ventricles.
Understand the Problem
The question is asking about the physiological changes that occur during the diastolic phase of the cardiac cycle. The answer choices suggest a focus on heart chamber volume, blood flow, valve function, and pressure within the heart.
Answer
Blood filling the atria and ventricles.
The typical event during diastole is that blood fills the atria and ventricles.
Answer for screen readers
The typical event during diastole is that blood fills the atria and ventricles.
More Information
During diastole, the heart muscle is relaxed, which allows blood to flow from the atria into the ventricles. This phase of the cardiac cycle is essential for the efficient filling of the heart chambers and preparation for the next contraction during systole.
Tips
A common mistake is to confuse the events that occur during diastole with those during systole. Diastole is associated with relaxation and filling of the chambers, whereas systole involves contraction and ejection of blood.
Sources
- Cardiac Cycle - Definition, systole and diastole - Kenhub - kenhub.com
- Cardiac Cycle | Anatomy and Physiology II - Lumen - courses.lumenlearning.com
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