Red pulp and white pulp are two separate tissue types that make up the spleen.
Blood and reticular fibers make up the red pulp, also known as splenic pulp.
The function of this area of the human spleen is to filter out old or damaged red blood cells.
Small lymphocyte-rich nodules within the spleen are referred to as white pulp, also known as Malpighian bodies of the spleen or splenic lymphoid nodules.
These are the spleen's primary roles.
No endocrine function and no hormone secretion occur in the spleen.