Question

Statement I: Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.

Statement II: Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.

In the light of the above statements, choose the most appropriate answer from the options given below:

Options

• Statement I is correct but Statement II is incorrect.

• Statement I is incorrect but Statement II is correct.

• Both Statement I and Statement II are correct.

• Both Statement I and Statement II are incorrect.

Answer 1

Both Statement I and Statement II are correct.

Explanation:

The thymus and bone marrow are both essential for the growth and maturation of T cells. As the main lymphoid organ, bone marrow produces all blood cells, including lymphocytes. A setting for T-cell maturation is provided by the thymus. As a result, both organs are essential to the immune system’s healthy operation, especially T-cell-mediated immunity.