Which of the following statements about the immune system is true?
A)All cells with important immune-system functions originate in the bone marrow or are derived from precursors or immature cells that originated in bone marrow
B)Natural killer cells have functions similar to macrophages but are found in different compartments of the body
C)Mast cells are derived from monocytes
D)Plasma cells are derived from T lymphocytes
E)Macrophages are derived from neutrophils

Question

Quizplus · Accepted Answer

All cells with important immune-system functions originate in the bone marrow or are derived from precursors or immature cells that originated in bone marrow. This includes B cells, T cells, natural killer cells, macrophages, and many others. Bone marrow is crucial for the development and maturation of immune cells.

Which of the Following Statements About the Immune System Is