Read the following passage and answer the question : The primary lymphoid organs are bone marrow and thymus, where immature lymphocytes differentiate into antigen sensitive Iymphocytes. They migrate to secondary lymphoid organ like spleen, lymph nodes, tonsils, paver’s patches of small intestine and appendix. All blood cells including lymphocytes are produced in bone marrow which is main lymphoid organ. Spleen is large reservoir of erythrocytes. [tis large bean shaped organ mainly containing lymphocyte and phagocyte. It acts as filter of blood by trapping blood borne micro organism. Lymph nodes are small solid structures located at different points along, Iymphatic system., Antigens trapped in Iymph node are responsible for activation of Iymphocytes present there and cause the immune response. There is lymphoid tissue located within. Lining of mayor tracts like respiratory, digestive ad urinogenital tracts called mucous associated Iymphoid tissue (MALT).
Which of the following is NOT secondary lymphoid organ ?
Read the following passage and answer the question : The primary lymphoid organs are bone marrow and thymus, where immature lymphocytes differentiate into antigen sensitive Iymphocytes. They migrate to secondary lymphoid organ like spleen, lymph nodes, tonsils, paver’s patches of small intestine and appendix. All blood cells including lymphocytes are produced in bone marrow which is main lymphoid organ. Spleen is large reservoir of erythrocytes. [tis large bean shaped organ mainly containing lymphocyte and phagocyte. It acts as filter of blood by trapping blood borne micro organism. Lymph nodes are small solid structures located at different points along, Iymphatic system., Antigens trapped in Iymph node are responsible for activation of Iymphocytes present there and cause the immune response. There is lymphoid tissue located within. Lining of mayor tracts like respiratory, digestive ad urinogenital tracts called mucous associated Iymphoid tissue (MALT).
Which of the following is NOT secondary lymphoid organ ?
Tonsils
Thymus
Appendix
Payer’s Patches
The Correct Option is B
Solution and Explanation
The option that is NOT a secondary lymphoid organ according to the passage is "Thymus."
Top Questions on human health and disease
For bacterial growth in a cell culture, growth law is very similar to the law of radioactive decay. Which of the following graphs is most suitable to represent bacterial colony growth? Where \( N \)
- Number of Bacteria at any time, \( N_0 \)
- Initial number of Bacteria.
- JEE Main - 2025
- Chemistry
- human health and disease
- Match List I with List II:Choose the correct answer from the options given below:
List I
List II
A Exophthalmic goiter I Excess secretion of cortisol, moon face & hypergylcemia B Acromegaly II Hypo-secretion of thyroid hormone and stunted growth. C Cushing’s syndrome III Hyper secretion of thyroid hormone & protruding eye balls. D Cretinism IV Excessive secretion of growth hormone. - NEET (UG) - 2024
- Biology
- human health and disease
- Match List I with List II
List I List II A Cocaine I Effective sedative in surgery B Heroin II Connabis sativa C Morphine III Erythroxylum D Marijuana IV Papaver somniferum
Choose the correct answer from the options given below:- NEET (UG) - 2024
- Biology
- human health and disease
- Which of the following are Autoimmune disorders?
A. Myasthenia gravis
B. Rheumatoid arthritis
C. Gout
D. Muscular dystrophy
E. Systemic Lupus Erythematosus (SLE)
Choose the most appropriate answer from the options given below:- NEET (UG) - 2024
- Biology
- human health and disease
- The common approach(es) for the treatment of cancer is/are:
(A) Vaccination
(B) Surgery
(C) Physiotherapy
(D) Radiation therapy
(E) Immunotherapy
Choose the correct answer from the options given below:- CUET (UG) - 2024
- Biology
- human health and disease
Questions Asked in CUET exam
- Find out which of the answer figures completes the figure matrix :
- CUET (UG) - 2024
- Image Based
- In the given analogy, choose the word which will replace the question mark: NEGI : MVTR :: SING : ?
- P, Q, R, and S are four wires of resistances 3 Ω, 3 Ω, 3 Ω, and 4 Ω respectively. They are connected to form the four arms of a Wheatstone bridge circuit. The resistance with which S must be shunted in order that the bridge may be balanced is__________
Fill in the blank with the correct answer from the options given below.- CUET (UG) - 2024
- Current electricity
- For the given mixed combination of resistors calculate the total resistance between points A and B.
Choose the correct answer from the options given below.- CUET (UG) - 2024
- Current electricity
- On the date of admission of a partner, there was a balance of ₹45,000 in the account of machinery. It was found undervalued by 10%. The value of machinery will appear in the new Balance Sheet at
- CUET (UG) - 2024
- Reconstitution of Partnership
Concepts Used:
Immune System
It consists of tissues, cells, soluble molecules like antibodies and lymphoid organs. The WBC cells called the leucocytes have a significant role as they seek out to destroy the disease-causing organisms. These leucocytes are stored in different locations in the body including the spleen, bone marrow, and thymus. These organs are called as the lymphoid organs. The leucocytes are also present in the lymph nodes of the body.It is considered as the main lymphoid orga and. It produces all the blood cells including the lymphocytes. The thymus is an organ that is present near to the heart, beneath the breastbone.
