Question

Select the option which is incorrect about the Thymus.

i. Thymus is single lobed organ
ii. Thymus is a site of formation of lymphocytes
iii. Thymus keeps getting degenerated from childhood
iv. Thymus is located beneath the breastbone

• A. i, ii, iii
• B. ii, iii, iv
• C. i, iii, iv
• D. i, ii, iv

Answer 1

The correct option is A i, ii, iii

The thymus is a primary lymphoid organ of the immune system. It is a bilobed organ present beneath the breastbone (sternum). T-cells are formed in the bone-marrow cells but for maturation, they migrate to the Thymus. The thymus is largest during childhood but begins to degenerate after puberty gradually.