Final answer:
The white pulp is where leukocytes, including T and B cells, are found within the spleen. It consists of germinal centers of dividing B cells surrounded by T cells and accessory cells. The marginal zone between the red pulp and white pulp sequesters antigens and presents them to lymphocytes.
Step-by-step explanation:
The white pulp is where we will find the leukocytes, including T and B cells, within the spleen. It surrounds a central arteriole and consists of germinal centers of dividing B cells surrounded by T cells and accessory cells, including macrophages and dendritic cells.
For example, a micrograph of spleen tissue shows the germinal center within the white pulp. The marginal zone, which is the region between the red pulp and white pulp, sequesters particulate antigens from the circulation and presents these antigens to lymphocytes in the white pulp.