Question

Which one of the following lymphoid organs is large at birth but reduces with age?

• A. Bone marrow
• B. Thymus
• C. Spleen
• D. Peyer’s patches

Answer 1

The Correct Option is B

The thymus is a lymphoid organ that is relatively large at birth and plays a crucial role in immune function by maturing T-cells. However, it gradually decreases in size and activity after puberty, a process known as thymic involution.

Answer 2

The thymus is a lymphoid organ that is large at birth and during childhood, but it gradually reduces in size with age. This process is called involution, and by adulthood, the thymus is much smaller and primarily composed of fatty tissue. The thymus plays a crucial role in the development of T-cells, which are essential for the immune system.

• Bone marrow remains important throughout life for the production of blood cells.
• Spleen maintains its functional importance throughout life but does not undergo a reduction in size similar to the thymus.
• Peyer's patches are small lymphoid tissues found in the intestines, and their size remains relatively stable throughout life.