What are the Most Active Phagocytic Cells in Circulating Blood

Question

What are the most active phagocytic cells in circulating blood?
A) Neutrophils and monocytes
B) Neutrophils and eosinophils
C) Monocytes and macrophages
D) Lymphocytes and monocytes

Accepted Answer

Neutrophils and monocytes are the most active phagocytic cells in circulating blood. Neutrophils are the first responders to bacterial infection, and monocytes, which can differentiate into macrophages and dendritic cells, play a significant role in both the innate and adaptive immune responses.