This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Surgery
[{'content': 'Ganglion is? \nSelect and explain. \nA. Collection of neurons in CNS, B. Collection of neurons outside CNS, C. Collection of dendrites, D. Any collection of neurons', 'role': 'user'}, {'content': "Answer: B \nExplanation: ANSWER: (B) Collection of neurons outside CNSREF: Gray's anatomy 39th ed p. 56Ganglia are aggregations of neuronal somata outside CNS. They occur in the dorsal roots of spinal nerves; in the sensory roots of the trigeminal, facial, glossopharyngeal, vagal and vestibulocochlear cranial nerves; in autonomic nerves and the enteric nervous system.", 'role': 'assistant'}]