Final answer:
The white blood cells found in the deep cortex of a lymph node are lymphocytes, specifically organized into germinal centers of B cells surrounded by T cells. These lymphocytes are essential for the adaptive immune response.
Step-by-step explanation:
The type of white blood cells found in the deep cortex of a lymph node are primarily lymphocytes. Lymphocytes are characterized by a large nucleus and a small rim of cytoplasm. They are crucial for the immune response and are divided into two main types: B cells and T cells. In the context of the lymph node, the lymphoid follicles in the cortex contain germinal centers of rapidly dividing B cells surrounded by a layer of T cells. These germinal centers are key sites for the generation of the adaptive immune response.
B cells mature in the bone marrow, while T cells mature in the thymus. Both B cells and T cells are found circulating in the bloodstream and lymph, as well as residing in secondary lymphoid organs like the spleen and lymph nodes. When lymph fluid enters the lymph node, it encounters these lymphocytes, which can react to antigens and help coordinate the immune response.
Lymphocytes, specifically B cells and T cells, are the type of white blood cells found in the deep cortex of a lymph node. B cells remain in the bone marrow to mature, while T cells migrate to the thymus for maturation.