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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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Jermain_ Jermain_
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10 years ago

 
In the mammalian heart, the valves open and close because   
A)
 
they are under neural control.   
B)
 
they are under myogenic control.   
C)
 
changes in chamber pressure cause them to open and close.   
D)
 
all of the above   
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padrepadre
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Jermain_ Author
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#2
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10 years ago
Thank you very much.
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