The “Microglial Cells” found in human brain, represent which of the following class of innate immune cells?
Show Hint
• Microglia = Brain macrophages
• CNS immune defense cells
- NK cells
- Macrophages
- Eosinophils
- Neutrophils
The Correct Option is B
Solution and Explanation
• Derived from monocyte/macrophage lineage
• Function as phagocytic cells in the brain
Step 1: Analyzing each option.
• NK cells: Involved in killing infected or tumor cells → Not resident brain macrophages.
• Macrophages: Phagocytic immune cells; microglia are specialized CNS macrophages → Correct.
• Eosinophils: Involved in parasitic infections → Incorrect.
• Neutrophils: First responders in inflammation, not resident CNS cells → Incorrect.
Step 2: Selecting the correct answer.
Thus, microglial cells are macrophage-like cells.
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