Overlying the |heart|, the twin lobed |thymus| consists largely of developing ~lymphocytes~. The |thymus| gland influences the activities of lymphoctyes in the |spleen| and ~lymph~ |glands|. The |thymus| produces a homone which stimulates antibody production in the lymphoid tissue. ~Lymph~ carries white |blood cells| to this organ, where they multiply and change into special ~infection~-fighting cells. After puberty, the |thymus| begins to shrink in size. Its role in the early years of life is not fully understood. It is believed it is important in the development of immunity.
