Which of the following granulocyte arrive at the earliest at the site of infection?
A
Eosinophils
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B
Basophils
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C
Neutrophils
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D
Monocytes
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Solution
The correct option is C Neutrophils Neutrophils are normally found in the bloodstream and account for 50% to 60% of the total circulating white blood cells. Once neutrophils have received the appropriate signals, it takes them about thirty minutes to leave the blood and reach the site of an infection, The first immune cells that arrive at an injured site are mostly neutrophils, which are quick-response immune cells that recognize and destroy bacteria.