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Home Q & A Board Biology-Related Homework Help Medicine Medical Administration
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CTaustin CTaustin
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6 years ago
The _____ prevents the backflow of blood into the atria when the ventricles contract
 
 AV valves
  S/I valves
  Aortic valve
  SA valves
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gool34gool34
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6 years ago
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CTaustin Author
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6 years ago
Thank you, thank you, thank you!
rhockeygirl
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Yesterday
This helped my grade so much Perfect
smi3
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2 hours ago
this is exactly what I needed
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