CUET Preparation Today
| Which of the following are secondary lymphoid organs? |
Bone marrow. Peyer's patches of intestine and appendix. Tonsils, lymph nodes. Both II and III. |
| Both II and III. |
| The primary lymphoid organs are bone marrow and thymus where immature lymphocytes differentiate into antigen-sensitive lymphocytes. After maturation the lymphocytes migrate to secondary lymphoid organs like spleen, lymph nodes, tonsils, Peyer’s patches of small intestine and appendix. |
