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3 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The human heart is: |
All the above |
Al.. |
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The lub dub sound of the heart beating is the sound of: |
The heart valves opening and closing |
The heart... |
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The heart valves to all the following, EXCEPT: |
Regulate the hearts contractions |
Regulate... |
