NEET2025ZoologyHuman Health and DiseasesActual
After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s) / tissue(s) like A. thymus B. bone marrow C. spleen D. lymph nodes E. Peyer's patches Choose the correct answer from the options given below
Options
- AB, C, D only
- BA, B, C only
- CE, A, B only
- DC, D, E only
Correct answer
D. C, D, E only
Step-by-step solution
The primary lymphoid organs are bone marrow and thymus where immature lymphocytes differentiate into antigen-sensitive lymphocytes. After maturation, the lymphocytes migrate into secondary lymphoid organs like spleen, lymph nodes, Peyer's patches of small intestine and appendix. These secondary lymphoid organ provide the sites for interaction of lymphocytes with the antigen.