This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'The protein synthesis site of the cell body of neurons \nSelect and explain. \nA. Nissl bodies, B. Dendrites, C. Axon, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The nissl bodies are the protein synthesis site in a neuron They are equivalent to rough endoplasmic reticulum Ref:Guyton and Hall textbook of medical physiology 12th edition ,page number 676', 'role': 'assistant'}]