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

Question

Quizplus · Accepted Answer

The thymus is considered a primary lymphoid organ because it is where T cells mature and develop their immune functions. The other options (appendix, tonsils, spleen) are considered secondary lymphoid organs because they primarily serve as sites for immune responses rather than T cell development.

Which of the Following Is Considered a Primary Lymphoid Organ