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Biology, 22.07.2019 08:30 codyshs160

When  the  ventricular  pressure  exceeds  atrial  pressure:   a. av  valves  open          d.  av  valves  close  b. cardiac  sphincter  open        e.  semilunar  valves  close  c. the  heart  stops 

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When  the  ventricular  pressure  exceeds  atrial  pressure:   a...
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