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Text File  |  1999-11-09  |  219b  |  10 lines

  1. When the right and left ventricles contract and eject blood, the AV valves are ____ and the pulmonary and aortic valves are _______. C
  2. closed/closed
  3. open/open
  4. closed/open 
  5. open/closed
  6.  
  7.  
  8. [#FRAME:"TRM2S4C"]
  9. NONE
  10.