| A | B |
| Lymph | straw colored fluid |
| Lymphic System | supplement to circulatory system |
| Lymphodenitis | enlargement of lymph nodes |
| Lymph Nodes | tiny, oval-shaped structures that filter lymph and produce lymphocytes |
| Axillary Nodes | lymph nodes located under the arms |
| Tonsils | masses of lymphatic tissue; palatine, adenoids, lingual |
| Spleen | sac-like mass of lymphatic tissue located in abdominal cavity |
| Thymus Gland | part of both lymphatic and endocrine systems; produces T-lymphocytes |
| Hodgkin's Disease | form of cancer of the lymph nodes |
| Infectious Mononucleosis | disease caused by Epstein-Barr virus |
| Immunity | the body's ability to resist invaders and diseases |
| Artificial Acquired Immunity | immunity that results from immunization |
| Immunization | increasing individual resistance by artificial means (vaccines) |
| Immunoglobin | protein that functions specifically as an antibody |
| Acquired Immunity | immunity developing over a lifetime as a result of exposure to invaders |
| Autoimmunity | a person's own immune system targets normal cells, tissues and organs |
| Nautral Immunity | immunity you are born with; permanent and inherited |
| Lupus | chronic, inflammatory autoimmune disease |
| Hypersensitivity | the body's immune system fails to protect itself against foreign material |
| Allergen | Antigen that causes allergic reactions |
| Anaphylaxis | fatal allergic reaction |
| AIDS | acquired immunodeficiency syndrome |
| HIV | the virus that causes AIDS |
| Tonsillitis | inflammation or infection of the tonsils |