Question

Which WBCs are the first to come into action in the case of an injury or infection?

• A. Eosinophils
• B. Neutrophils
• C. Basophils
• D. All of the above

Answer 1

The correct option is B

Neutrophils

The first immune cells that arrive at an injured site are mostly neutrophils, which are quick-response immune cells that recognize and destroy bacteria. Neutrophils are the most numerous type of white blood cell in the blood, and their job is to immediately respond to inflammation and kill bacteria by phagocytosis, which is the process by which a cell engulfs, destroys and digests another cell, bacteria or cellular debris.