And once they are released into our plasma into our lymph they travel and are stored within the lymph nodes of our body. Now, when infection takes place the B lymphocytes are released from the lymph node and they travel through our lymph system through our blood system and they travel inside our tissues. Now, before we actually discuss these B lymphocytes let's backtrack and go back to the process of inflammation. So when the innate immune system carries out inflammation it basically calls upon macrophages. So this is our macrophage. Now, what the macrophage does is it engulfs and breaks down these different types of pathogens.