Which of the Following Statements Regarding the Lymphoid Organs Is

question 24

Multiple Choice

Which of the following statements regarding the lymphoid organs is NOT true?

• A)The primary lymphoid organs are the bone marrow and thymus.
• B)The thymus secretes protein hormones,collectively called thymopoietins.
• C)Large numbers of macrophages and lymphocytes are found in the lymph nodes and spleen.
• D)The tonsils contain lymphocytes,macrophages,and dendritic cells that respond to microbes in food.
• E)Once a lymphocyte reaches a secondary lymphoid organ,it remains there for its lifetime.

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