Practice question

MCQ

Question

Acute inflammation characteristically involves?

Options

Choose one · Correct answer highlighted

influx of mast cells capillary endothelial cell enlargement Influx of neutrophils Correct Influx of macrophages

Explanation

Acute inflammation is dominated by rapid neutrophil recruitment within minutes to hours, mediated by histamine, complement C5a and IL-8. Neutrophils phagocytose microbes and release reactive oxygen species. Macrophages predominate later in chronic inflammation, while mast cells initiate but do not influx.

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