And this is shown in this diagram. Now anytime we have an antigen in our body either actually floating around in our body or bound to some other type of leukocide we're going to have a specific B lymphocide that has the B cell receptors that can bind to that particular and that specific pathogenic antigen. So the B lymphocyte can either pick up these antigens found floating around our system or it can actually also grab the antigen off of our macrophage or some other type of leukocytes. So the entire point of a B lymphocyte is to collect these antigens found inside our body and these antigens came from some type of pathogen. For example a bacterial cell. The next question is what happens once our antigen is bound onto the B cell receptor of our B cell?