After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s…

Zoology ·Previously asked in NEET UG 2025

View the full solved paper: NEET UG 2025

Question

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:

  1. A. B, C, D only
  2. B. A, B, C only
  3. C. E, A, B only
  4. D. C, D, E only (Correct answer)

Correct Answer

Option D — C, D, E only

Detailed Solution & Explanation

The correct answer is C, D, E only.

Key Points

  • Primary lymphoid organs (bone marrow and thymus) are where lymphocytes mature.
  • Secondary lymphoid organs, where matured lymphocytes interact with antigens, are the spleen, lymph nodes and Peyer's patches (plus tonsils and appendix).

Topics covered: NEET UG 2025 Zoology Human Health and Disease Lymphoid Organs