Circle the correct choice in each instance to complete the statement: The first heart sound is associated with closing of the $(A V / \text {semilunar})$ valves and signals the onset of (systole/diastole), whereas the second heart sound is associated with closing of the $(A V / \text {semilunar})$ valves and signals the onset of (systole/diastole).
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The first heart sound is associated with the closing of the AV valves, which occurs at the beginning of systole. Show more…
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Question 2: The closure of the mitral valve (bicuspid valve) A) occurs during ventricular diastole B) is represented by the P wave on the EKG C) occurs when the tricuspid valve is open D) contributes to the first heart sound Question 8: Blood within the pulmonary veins returns to the A) left atrium B) right atrium C) right ventricle D) left ventricle
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The first heart sound represents which portion of the cardiac cycle? a. atrial systole b. ventricular systole c. closing of the atrioventricular valves d. closing of the semilunar valves
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During mid-to-late diastole, blood flows from the atria to fill their respective ventricles to prepare for systole. What is happening during that time? Choose all that apply. A. Semilunar valves are open. B. Pressure in the heart is high. C. Atria contract to force the remaining blood into the ventricles. D. Atrioventricular valves are open. E. Blood flows passively from veins through atria into ventricles.
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