Cells of the Mononuclear Phagocyte System Include

Question

Cells of the mononuclear phagocyte system include
A) macrophages and monocytes.
B) neutrophils and eosinophils.
C) lymphocytes and plasma cells.
D) macrophages, monocytes, neutrophils and eosinophils.
E) macrophages, monocytes, neutrophils, eosinophils, lymphocytes and plasma cells.

Accepted Answer

The mononuclear phagocyte system is a group of immune cells that originate from the same bone marrow precursor cell and are involved in phagocytosis and antigen presentation. This includes macrophages and monocytes, but not neutrophils, eosinophils, lymphocytes, or plasma cells. Therefore, the best choice is A, which includes macrophages and monocytes, the two main components of the mononuclear phagocyte system.