During diastole, the ventricles are doing what?

Prepare for the Certified Nursing Assistant (CNA) Level I Exam. Utilize flashcards and multiple choice questions, with hints and explanations for each question. Ready yourself for success on your OSBN State Certification Test!

Multiple Choice

During diastole, the ventricles are doing what?

Explanation:
During diastole the ventricles are relaxing. This phase lets the ventricles fill with blood from the atria, with the atrioventricular valves open and the semilunar valves closed. The other descriptions describe activities that happen during contraction (systole) or are related to breathing, not the heart’s filling phase, so they don’t fit diastole.

During diastole the ventricles are relaxing. This phase lets the ventricles fill with blood from the atria, with the atrioventricular valves open and the semilunar valves closed. The other descriptions describe activities that happen during contraction (systole) or are related to breathing, not the heart’s filling phase, so they don’t fit diastole.

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