LYMPHATIC SYSTEM. Chapter 14. The lymphatic system is part of the circulatory system. Two key roles in the body: Carries fluid from the extracellular environment into the bloodstream, and thereby helps to maintain fluid balance.
The regions of the spleen that contain white blood cells are called the white pulp.
The spleen functions as a large filter for removing foreign particles,old and defective red blood cells, and platelets from the bloodstream.
These functions are accomplished by the lymphocytes and macrophages Within the white pulp.