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: Anatomy
[{'content': 'Disease or infarction of neurologist tissues causes it to be replaced by \nSelect and explain. \nA. Fluid, B. Neuroglia, C. Proliferation of adjacent nerve cells, D. Blood vessel', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Neuroglia astrocytes are the principal cells in the central nervous system responsible for reactioj to injury repair and scar formation in the brain. They perform function similar to fibroblasts in the CNS Refer Robbins page no 1252', 'role': 'assistant'}]