Which white blood cell is usually the first major phagocyte to reach an acute bacterial infection?
Correct answer: A. Neutrophil
- A. Neutrophil
- B. Lymphocyte
- C. Eosinophil
- D. Basophil
Explanation
Neutrophils commonly arrive early in acute bacterial inflammation and engulf microorganisms. Lymphocytes support adaptive immunity, eosinophils are linked mainly with parasites and allergy, and basophils release inflammatory mediators.
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About Blood and Immunity
Blood and immunity covers plasma, red blood cells, white blood cells, platelets, haemoglobin, blood groups and haemostasis. It explains innate and adaptive defenses, antibodies, lymphocytes, inflammation, vaccination and immune memory, with a distinction between active and passive immunity and between antigen and antibody.
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