IMMUNOGLOBULINS
Immunoglobulins, otherwise known as antibodies are large proteins that are shaped as a 'Y', that are produce by B cells that fight and kill off foreign matter. Each antibody is specific to an antigen. There are five classes of immunoglobulins; IgG, IgM, IgA, IgE AND IgD. Each class has a different function and location, the most common class is IgG.