Multiple choice

In a human body, the primary lymphoid organs are involved in the production and early clonal selection of lymphocyte tissues. Which one of the following is/are the primary lymphoid organ(s)?

  1. Lymph nodes

  2. Spleen

  3. Peyer's patch

  4. Tonsils

  5. Thymus

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

T-cells are derived from bone marrow stem cells and differentiate into immunocompetent cells in the thymus.