MICROANATOMY

Detailed explanation-1: -Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel). It is in these organs where the cells of the immune system do their actual job of fighting off germs and foreign substances.

Detailed explanation-2: -lymphoid tissue, cells and organs that make up the lymphatic system, such as white blood cells (leukocytes), bone marrow, and the thymus, spleen, and lymph nodes.

Detailed explanation-3: -The histological structure of four different types of secondary lymphoid tissue; lymph nodes, tonsils, Mucosa associated lymphoid tissue and the spleen, and how their structure is adapted to their different functions. The involvement of the lymphoid tissues in some common medical conditions.

Detailed explanation-4: -Lymphatic organs are characterized by clusters of lymphocytes and other cells, such as macrophages, enmeshed in a framework of short, branching connective tissue fibers.

Detailed explanation-5: -Lymphatic Tissues: The thymus and bone marrow are primary lymphoid tissue, while the lymph nodes, tonsils, and spleen are secondary lymphoid tissue.