(Answered) The heartutilizing knowledge from your learning and

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The Heart

Utilizing knowledge from your learning and assigned readings, respond to the following questions:

Explain the significance of the thickness of the left ventricular wall.
The major coronary vessels are on the surface of the heart. What is the advantage of that location?
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?
What is the purpose of prolonged contraction of the myocardium?

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