This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Sarcolemma is the cell wall surrounding: \nSelect and explain. \nA. Neurons, B. Muscle cells, C. Red blood cells, D. None of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: Each muscle fiber is a single cell that is multinucleated, long, cylindrical, and surrounded by a cell membrane, the sarcolemma. Ref: Ganong's Review of Medical Physiology 23rd edition, Chapter 45.", 'role': 'assistant'}]