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(a) Name the lymphoid organ in humans wh...

(a) Name the lymphoid organ in humans where all the blood cells are produced.
(b) Where do the lymphocytes produced by the lymphoid organ mentioned above migrate and how do they affect immunity?

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(a) All the blood cells are produced from the bone marrow of adult human.
(b) The lymphocytes either migrate and differentiate in thymus to form T-lymphocytes or in the lymph nodęs to form B-lymphocytes. T-lymphocytes form CMIS while B-lymphocytes form AMIS.
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