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                              Q:
                           
                           
                                                      | A) Aortic and pulmonary valves control the flow of blood into the heart. | B) The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur. | 
| C) The tricuspid valve divides the left atrium from the left ventricle. | D) The mitral valve separates the right atrium from the right ventricle. | 
                              Answer:   B) The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur.
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
The correct statement from the given options is
The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur.
 
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