MICROANATOMY

Detailed explanation-1: -Lymph nodes filter substances that travel through the lymphatic fluid, and they contain lymphocytes (white blood cells) that help the body fight infection and disease.

Detailed explanation-2: -Some lymphocytes travel to your thymus gland. These lymphocytes become T cells. Other lymphocytes travel to your lymph nodes and organs. These lymphocytes become B cells.

Detailed explanation-3: -The cell types in lymph nodes comprise lymphoid cells, accessory or non-lymphoid cells and stromal cells, and within these cell types a number of different sub-types can now be identified by means of enzyme-and immunocytochemistry.