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