NEET UG · Biology · Human Health and Disease
Primary and Secondary Lymphoid Organs
NEET asked Primary and Secondary Lymphoid Organs 3 times, in 2024, 2025 and 2026: 3 of the 1,875 questions in the 10 papers from 2017–2026. It belongs to Immunity and Lymphoid Organs, in Human Health and Disease (Biology). The longest wait between two papers asking it was 1 year.
Updated 2026-10-08
- Times asked
- 3
- in 2017–2026
- Papers
- 3
- of 10
- First asked
- 2024
- last in 2026
- Chance next paper
- 11%
- calibrated historical rate
Questions on this idea, by paper
2017–2026. 2024, 2025 and 2026.
How NEET framed it
Other is the usual form. Skill tested: recall.
- Count correct statements on lymphoid organs
- Statement i/ii on immune system
Chance asked next paper 11%
Every question
All 3 questions
From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.
- 2026 Q165Which of the following are secondary lymphoid organs ? (a) Bone marrow (b) Tonsils (c) Spleen (d) Thymus Choose the correct answer from…Other · Medium
- 2025 Q156After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s) /…Other · Medium
- 2024 Q200Given below are two statements: Statement I: Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are…Two statements · Medium
Same topic
Other ideas in Immunity and Lymphoid Organs
Immunity and Lymphoid Organs has 9 ideas NEET has asked; 5 of them came up in more than one question.
- Colostrum and IgA3× · 2026
- Autoimmune Disorders3× · 2024
- Innate versus Acquired Immunity2× · 2025
- Cell-mediated Immunity and Graft Rejection2× · 2019
- Antibody Structureonce · 2025
- HIV and AIDSonce · 2023
- Active and Passive Immunityonce · 2020
- Mucosa-associated Lymphoid Tissueonce · 2017