Practice question
Question
Which CNS glial cell is primarily involved in immune defense?
Explanation
Pick B: Microglia. Thinking about Neuron; Structure and Function in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: the functional job described in the stem is exactly what Microglia does in Neuron; Structure and Function. Hence Microglia is correct. Treat this as a building block for the rest of Neuron; Structure and Function; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Microglia.