Question

After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s)/tissue(s) like:

1. Thymus
2. Bone marrow
3. Spleen
4. Lymph nodes
5. Peyer’s patches

Choose the correct answer from the options given below:

Options

• B, C, D only

• A, B, C only

• E, A, B only

• C, D, E only

Answer 1

C, D, E only

Explanation:

The lymphatic system’s secondary lymphoid organs are sites where mature lymphocytes (B and T cells) encounter antigens, become activated, and initiate adaptive immune responses. Adenoids, tonsils, lymph nodes, the spleen, and different mucosa-associated lymphoid tissues (MALT) are among these organs.