Now let's move on to IgM immunoglybulin M so these are found on B lymphocytes, on the membrane of B lymphocytes, and they're highly effective against killing off our viral agents. Now, Ige are those antibodies involved mostly in allergic reactions, and we'll talk about these in much more detail when we'll discuss what allergies actually are. Now? What about IGD? Well, immunoglobulin Deed are those antigens that are basically also found on the B lymphocytes, and they play a role in actually creating our antibodies. So they help us differentiate our B lymphocytes into plasma cells.