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lisa_lordes lisa_lordes
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7 years ago
When these valves open, blood goes from the atria to the ventricles.
A) AV valves
B) SA node
C) SL valves
D) AV node
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Biology of Humans: Concepts, Applications, and Issues

Biology of Humans: Concepts, Applications, and Issues


Edition: 5th
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R.FrantR.Frant
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7 years ago
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lisa_lordes Author
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7 years ago
This site is awesome
kamikazekota
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You make an excellent tutor!
Marctheshark
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2 hours ago
Good timing, thanks!
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