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gifted09 gifted09
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10 years ago
Since the SA node is at the top of the atrial mass, the atria contract from the top down. How does this increase the efficiency of atrial contraction? Do the ventricles have a similar arrangement? If so, how does it work?

Source  Fundamentals of Anatomy & Physiology (8th ed)
Martini
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Educator
10 years ago
Does this help?

https://biology-forums.com/index.php?topic=80158.0
Mastering in Nutritional Biology
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gifted09 Author
wrote...
10 years ago Edited: 10 years ago, gifted09
No, not really this question is unanswered.
Post Merge: 10 years ago

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