Why is the thymus categorized as a primary lymphoid organ?
A) it is the production site for leukotrienes
B) it is the production site for monocytes
C) it is the maturation site for pre-T cells
D) it is the proliferation site for mature B cells
E) it is the antigen-presenting site

Question

Quizplus · Accepted Answer

The thymus is categorized as a primary lymphoid organ because it is the maturation site for pre-T cells. These pre-T cells mature into functional T cells in the thymus before leaving to participate in the immune response. The thymus does not produce leukotrienes, monocytes, or mature B cells, nor is it an antigen-presenting site.

Why Is the Thymus Categorized as a Primary Lymphoid Organ