What Is Lymphoid Tissue?
The lymphoid tissue consists of mesh-like areas of connective tissues within the body containing white blood cells, most commonly lymphocytes. Lymphoid tissue and lymphatic vessels, which transport clear body fluid called lymph to the heart, comprise the lymphatic system. Primarily involved with immune function, the components of the lymphoid tissue include the lymph nodes, the tonsils and adenoids, the spleen, and the mucosa-associated lymphoid tissues (MALT). In addition, the thymus gland and the bone marrow play a role in lymphoid function in the body. The lymphoid tissue operates to defend the body from infections, foreign materials, and spreading cancer cells.