The function of the plasma cell is to make antibodies which are proteins that attack and destroy invading organisms. The antibodies make the organisms more visibile to other white cells or may rupture the organism altogether. To understand MM, it is first important to understand the function of the bone marrow and its role in the production of blood cells. In our bloodstream, there are three kinds of blood cells, namely, red cells, white cells, and platelets. Red blood cells contain haemoglobin for carrying oxygen to our tissues.
Plasma cells are the mature, fully differentiated forms of B lymphocytes that produce antibodies.
Platelets are responsible, together with blood clotting protein factors, for normal clotting of blood after injury. Peripheral blood smears showing two segmented neutrophils, one lymphocyte, and red blood cells. The small 'dots' are the platelets. The bone marrow is a highly vascular organ occupying the cavity of bones. It is the primary site or the 'factory' of production of these blood cells.