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Lymphatic System
| Question | Answer |
|---|---|
| T Cells | Four cells; Killer, Suppressor, Helper, and Memory |
| Killer T Cell | A T cell that releases lymphotoxins to destroy foreign cells |
| Suppressor T Cells | A T cell that inhibits the activity of Helper T cells |
| Helper T Cells | A T cell that releases lymphokines that stimulate Killer T cell activity. Also stimulate B cells and humoral immunity |
| Memory T Cells | A T cell that stores information on antigen structure |
| B Cells | Three cells; Plasma, Memory, and Antibodies |
| Plasma Cells | A B cell that produces antibodies |
| Memory B Cells | A B cell that stores information on antigen structure |
| Antibodies | A B cell that chemically bind to specific antigens |
| Anaphylaxis | An acute systemic allergic reaction that includes hives, respiratory distress, shock, and gastrointestinal distress |
| Autoimmunity | A condition in which the immune response produces autoantibodies to a natural antigen, causing injury and destruction to healthy tissues |
| Allergen | A foreign substance or antigen that stimulates a hypersensitivity reaction |
| Antibody | 5 classes; IgA, IgD, IgE, IgG, and IgM |
| Antigen | A substance that stimulates certain white blood cells to produce antibodies |
| Lymph | The fluid in the lymphatic network |
| Lymph Node | An oval structure that in enclosed by a fibrous capsule that receives, filters, and sends lymph on it's way toward the heart |
| Lymphatic Vessel | The result of lymphatic capillaries merging together. They have thicker walls, and contain valves |
| Lymph Nodules | No fibrous capsule, oval shaped, and are found singly or in clusters |
| Antibody Class IgA | Located in tears, blood, milk, saliva, mucus, and lymph. Provide localized protection of mucous membrane |
| Antibody Class IgD | Located in blood and lymph. And attached to surfaces of B cells. May stimulate production of more antibodies |
| Antibody Class IgE | Attached to basophil cells, mast cells, and B cells. Involved in allergic response |
| Antibody Class IgG | Located in blood, lymph, and intestines. Stimulate phagocytosis of bacteria and viruses, neutralize toxins, and trigger the release of complement |
| Antibody Class IgM | Located in blood and lymph. And attached to surfaces of B cells. Stimulate lysis of bacteria in blood and lymph |
| Tonsils | Multiple groups of large lymphatic nodules. 3 types: Palatine, Pharyngeal, and Lingual. |
| Spleen | Largest lymphatic organ, filters and stores blood. Red pulp contains all components of circulating blood, white pulp is similar to lymph nodules. No afferent vessels or sinuses. |
| Peyer's Patches | Only in small intestine, recognizes harmful antigens, can create lymphocytes to deal with harmful antigens |
| Humoral Immunity | Involves B cells that become plasma and produce antibodies |
| Cell-Mediated Immunity | Involves T cells that directly destroy foreign cells |
| Nonspecific Defenses | Consists of physical barriers, phagocytosis, and Natural Killer Cells |
| Specific Defenses | Immunity. Consisting of antibodies, and lymphocytes. |
| Major Histocompatibility Complex | Group of genes that determine the specific distribution of membrane receptors in all self cells |
| Thymus | Used early on in development, promotes maturation of lymphocytes into T cells and releases them into the bloodstream |
| Inflammatory Response | The release of histamine and serotonin to cause localized vasodilation and increased blood vessel permeability. |
| Acquired Immunity | 4 Types: Naturally Acquired Active Immunity, Naturally Acquired Passive Immunity, Artificially Acquired Active Immunity, and Artificially Acquired Passive Immunity |
| Naturally Acquired Active Immunity | Develops from exposure to pathogens and toxins. Such as Chicken Pox, Measles, and Influenza |
| Naturally Acquired Passive Immunity | The transfer of antibodies from a person with immunity to a person without immunity. Happens during pregnancy. |
| Artificially Acquired Active Immunity | Results from vaccination, almost identical to Naturally Acquired Active Immunity, but artificially induced. |
| Artificially Acqired Passive Immunity | Foreign antibodies are introduced into the body, short-lived because they are eliminated by the body because their MHC doesn't match self cells |
| HIV | Human Immunodeficiency Virus. Targets Helper T cells |
| Interstitial Fluid | Plasma from the bloodstream that is pushed through capillary wall. About 90% diffuses back into the capillaries. |
Created by:
vikinganatandphys
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