Question:
The primary lymphoid organ is
The primary lymphoid organ is
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Bone marrow: B-cell and T-cell production. B-cell maturation.
Thymus: T-cell maturation.
Updated On: Mar 31, 2026
- Thymus gland
- Tonsils
- Peyer's patches
- Spleen
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The Correct Option is A
Solution and Explanation
Step 1: Classification of Lymphoid Organs:
Lymphoid organs are classified into two types:
Step 2: Evaluate Options:
Among the given options, the Thymus gland is a primary lymphoid organ. The others are secondary.
Lymphoid organs are classified into two types:
- Primary Lymphoid Organs: Sites where immature lymphocytes differentiate and mature into antigen-sensitive lymphocytes. Examples: Bone Marrow and Thymus.
- Secondary Lymphoid Organs: Sites where lymphocytes interact with antigens and proliferate. Examples: Spleen, Lymph nodes, Tonsils, Peyer's patches, MALT.
Step 2: Evaluate Options:
Among the given options, the Thymus gland is a primary lymphoid organ. The others are secondary.
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