Q9 of 30 Page 1

(a) Highlight the role of thymus as a lymphoid organ.

(b) Name the cells that are released from the above-mentioned gland. Mention how they help in immunity.


(a) The role of thymus as a lymphoid organ is that it provides micro-environments for the development and maturation of T-lymphocytes.


(b) The cells that are released from the above mentioned gland are T-lymphocytes. They mediate cell-mediated immunity.


The T-lymphocytes themselves do not secrete antibodies but help B cells produce them.


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