MICROANATOMY

Detailed explanation-1: -White pulp contains lymphoid aggregations, mostly lymphocytes, and macrophages which are arranged around the arteries. The lymphocytes are both T (mainly T-helper) and B-cells. Red pulp is vascular, and has parencyhma and lots of vascular sinuses.

Detailed explanation-2: -The white pulp of the spleen contains typical lymphoid elements, such as plasma cells, lymphocytes, and lymphatic nodules, called follicles in the spleen. Germinal centres in the white pulp serve as the sites of lymphocyte production.

Detailed explanation-3: -The white pulp of the spleen is lymphoid tissue consisting of lymphocytes, macrophages and other free cells lying in a reticular meshwork and surrounding arterial vessels to form the PALS (Figure 2).