Which type of white blood cell responds to injury and immunologic challenges and is capable of phagocytosis?

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Multiple Choice

Which type of white blood cell responds to injury and immunologic challenges and is capable of phagocytosis?

Explanation:
Neutrophils are the frontline responders to tissue injury and infection. They rapidly migrate to damaged areas and perform phagocytosis, engulfing bacteria and debris and using their granules to digest invaders. This rapid, nonspecific defense is a hallmark of the acute inflammatory response and best fits a cell that both responds to injury and is capable of phagocytosis. Lymphocytes drive adaptive immunity and aren’t primarily phagocytic, while monocytes can engulf material but typically arrive later and are more involved in macrophage function and antigen presentation. Eosinophils deal mainly with parasitic infections and allergies, with less emphasis on phagocytosis.

Neutrophils are the frontline responders to tissue injury and infection. They rapidly migrate to damaged areas and perform phagocytosis, engulfing bacteria and debris and using their granules to digest invaders. This rapid, nonspecific defense is a hallmark of the acute inflammatory response and best fits a cell that both responds to injury and is capable of phagocytosis. Lymphocytes drive adaptive immunity and aren’t primarily phagocytic, while monocytes can engulf material but typically arrive later and are more involved in macrophage function and antigen presentation. Eosinophils deal mainly with parasitic infections and allergies, with less emphasis on phagocytosis.

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