Lymph nodes (Cervical, axillary, inguinal)
Large collections of lymph nodes are found in the cervical, axillary, and inguinal regions. As lymph is transported, it is filtered through lymph nodes, which cluster along the lymphatic vessels of the body. Within there are macrophages, phagocytes that destroy bacteria, cancer cels, and other foreign matter in the lymphatic stream. They filter and protect against bad things.