A patient's injury has initiated an immune response that involves inflammation. What are the first cells to arrive at a site of inflammation?
A) Eosinophils
B) Red blood cells
C) Lymphocytes
D) Neutrophils
Ans: D
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Neutrophils are the first cells to arrive at the site where inflammation occurs. Eosinophils increase in number during allergic reactions and stress responses, but are not always present during inflammation. RBCs do not migrate during an immune response. Lymphocytes become active but do not migrate to the site of inflammation.
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