There are_______ pulmonary veins.
A) 6
B) 2
C) 4
D) 8
E) none of the above
Correct Answer:
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Q46: Pacemaker cells isolated from the SA node
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A)
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Q50: Contractions of the papillary muscles
A) eject blood
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Q53: _is to slow heart rate as_ is
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Q55: The right ventricle pumps blood to the
A)
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