Showing 14931 questions
Sort:
4685 Anatomy

All of the following statements regarding the hea are true Except

AThe nerve fibers that conduct the pain associated with ischemia accompany the sympathetic nerve supply to the hea
BThe sinoatrial node does not receive a nerve supply and thus initiates the heartbeat autonomously (Correct Answer)
CThe atrioventricular node is located in the interatrial septum
DThe diaphragmatic surface of the hea is composed primarily of the left ventricular wall