Papillary Muscles

question 31

Multiple Choice

Papillary muscles:

• A) contract when the ventricles relax
• B) prevent the valves from closing during ventricular diastole
• C) are attached to the semi lunar valves via the chordae tendineae
• D) prevent the backflow of blood into the atria during ventricular systole
• E) prevent the backflow of blood into the ventricles from the aorta

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