Identify the types of phagocytes in the body, and differentiate between fixed macrophages and free macrophages
A) The body's phagocytes are macrophages. Fixed macrophages are scattered among connective tissues and do not move; free macrophages are mobile and can travel to the site of injury.
B) The body's phagocytes are neutrophils, eosinophils, and macrophages. Fixed macrophages are scattered among connective tissues and do not move; free macrophages are mobile and can travel to the site of injury.
C) The body's phagocytes are B cells, T cells, and macrophages. Fixed macrophages are scattered among connective tissues and do not move; free macrophages are mobile and can travel to the site of injury.
D) The body's phagocytes are neutrophils, eosinophils, and macrophages. Fixed macrophages can only respond to one type of pathogen; free macrophages are free to respond to any pathogen.
E) The body's phagocytes are B cells, T cells, and macrophages. Fixed macrophages can only respond to one type of pathogen; free macrophages are free to respond to any pathogen.
Answer: B
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