MICROANATOMY

Detailed explanation-1: -The tonsils, spleen, and lymph nodes are referred to as secondary lymphoid organs. These organs do not produce or mature lymphocytes. Instead, they filter lymph and store lymphocytes. It is in these secondary lymphoid organs that pathogens (or their antigens) activate lymphocytes and initiate adaptive immune responses.

Detailed explanation-2: -Total white blood cell count was significantly increased in the tonsillitis group compared with the mononucleosis group (16, 560 cells per microliter vs. 11, 400 cells per microliter), but the lymphocyte count was higher in the mononucleosis group (6, 490 cells per microliter vs. 1, 590 cells per microliter).

Detailed explanation-3: -White blood cell formation occurs in the soft tissue inside of your bones (bone marrow). Two types of white blood cells (lymphocytes) grow in the thymus gland (T cells) and lymph nodes and spleen (B cells).