Which of the following is considered a primary lymphoid organ?
A) appendix
B) tonsils
C) thymus
D) spleen

Question

Quizplus · Accepted Answer

The thymus is considered a primary lymphoid organ because it is the site of T cell maturation. The other options (appendix, tonsils, spleen) are considered secondary lymphoid organs because they are involved in the activation of immune responses, rather than the initial development of immune cells.

Which of the Following Is Considered a Primary Lymphoid Organ