What happens during diastole?

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Enhance your knowledge and skills in anaesthesia and theatre nursing. Test your understanding with multiple choice questions, complete with explanations and hints. Prepare effectively for your exam and boost your confidence now!

Multiple Choice

What happens during diastole?

Explanation:
During diastole, the heart muscle relaxes and the chambers fill with blood. The ventricles are relaxed, the atrioventricular valves are open, and blood returns from the body and lungs to the atria, with much of the filling occurring passively into the ventricles. Toward the end of diastole, the atria contract a little to push a final amount of blood into the ventricles, but the main feature is relaxation and filling. That’s why the statement describing relaxation and blood entering the atria from the veins best matches diastole. Atrial contraction happens later (atrial systole), ventricles contracting and blood leaving the heart occur during systole.

During diastole, the heart muscle relaxes and the chambers fill with blood. The ventricles are relaxed, the atrioventricular valves are open, and blood returns from the body and lungs to the atria, with much of the filling occurring passively into the ventricles. Toward the end of diastole, the atria contract a little to push a final amount of blood into the ventricles, but the main feature is relaxation and filling. That’s why the statement describing relaxation and blood entering the atria from the veins best matches diastole. Atrial contraction happens later (atrial systole), ventricles contracting and blood leaving the heart occur during systole.

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