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Unknown
All of the following statements regarding the heart are true EXCEPT
The nerve fibers that conduct the pain associated with ischemia accompany the sympathetic nerve supply to the heart
The sinoatrial node does not receive a nerve supply and thus initiates the heart beat autonomously
The atrioventricular node is located in the interatrial septum
The diaphragmatic surface of the heart is composed primarily of the left ventricular wall
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