Anatomical system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymphoid tissue, lymphocytes including the B cells and T cells, and antibodies.
hog:0001725
hog:0000038 mesonephroshog:0000120 spleenhog:0000253 thymushog:0000257 liverhog:0001218 bone marrowhog:0001535 lymphocytetao:0001159