The Atrioventricular (AV)valves Are Closed ________

question 4

Multiple Choice

The atrioventricular (AV) valves are closed ________.

• A) when the ventricles are in diastole
• B) while the atria are contracting
• C) when the ventricles are in systole
• D) by the movement of blood from atria to ventricles

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