Immune and Lymphatic system quiz prep
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39 terms
Terms | Definitions |
|---|---|
 antiviral proteins | interfere with viral replication inside the cell. (do not interfere with entry of viruses) |
| two things that happen to blood cells during inflammation | dialate and become leaky |
| lymphokine | protien secreted by the Killer T cells that acts as a chemical messenger between other T cells and B cells. |
| macrophage | type of phagocyte that engulfs damaged cells or pathogens that have entered the body's tissues |
| plasma cells make what? | antibodies |
| memory B cells | Long lived cells that can rapidly differentiate into plasma cells and more memory cells so you can respond quickly to memory cells so you can respond quickly to another attack by a microbe |
| opsonization | makes the antigen more "appealing" to the macrophage |
| cytokine | secreted by the supressor T cell that aids to destroy pathogens |
| skin and mucous membranes | physical barriers to antigens |
| cell-mediated immunity | uses living cells like T cells and macrophages |
| phagocytes | cells that ingest antigens |
| helper T cells | A type of lymphocyte that helps activate other types of T cells and may help stimulate B cells to produce antibodies. |
| humoral immunity (antibody mediated) | immune response that occurs in body fluids involving antibodies and the B-lymphocytes that produce them |
| Cell mediated immunity | Immunity that is produced as the result of an encounter with an antigen, with subsequent production of memory cells. |
| Antibody | Substance produced by the body that inactivates or destroys another substance that is introduced into the body; immunoglobulin |
| antigen | A substance that triggers an immune response when it is introduced into the body. |
| Primary response | The initial reaction of the immune system to a specific antigen |
| Secondary response | Rapid and intense reaction to antigens on second and subsequent exposures attributable to memory cells. |
| Pathogen | disease producing oranisms |
| Inflammatory response | a nonspecific defense reaction to tissue damage caused by injury or infection |
| Specific Immunity | Foreign body has entered your body and now your body is fighting the inflammation |
| T-cell | type of lymphocyte that engulf particles, non-specific |
| B-cells | Lymphocytes with memory - once t-cell fights antigen a B cells is formed to remember that antigen |
| What happens when antigen enters body | Antigen enters body, T-cells activated, fight antigen, T helper gets more T-cells, Continue to fight until antigen is destroyed, T-suppressor calls off the t-cell and cell get it destroyed |
| Next time antigen is introduced | Antigen enters body again, t-cells activated, t helper gets more t-cells and B-cell is activated, B & T cells fight antigen until destroyed, T and B suppresor cells call off the fight, Cells are destroyed |
| Autoimmunity | Body sees itself as an antigen and fights it off, varying types and severities. ex: aids, lupus rheumatoid arthritis |
| interleukin | chemical secreted by helper T cells and stimulates the division of killer T cells |
| perforin | a protein secreted by a cytotoxic T cell that lyses an infected cell by perforating its membrane |
| HIV | the virus that causes acquired immune deficiency syndrome (AIDS) |
| AIDS | a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles |
| histamine | chemical released by activated mast cells that increases the flow of blood and fluids to the surrounding area |
| vaccine | A harmless variant or derivative of a pathogen that stimulates a host's immune system to mount defenses against the pathogen. |
| sebum oil | the oily, lubricating secretion of glands in the skin called sebaceous glands |
| the skin is a (nonspecific/specific) defense. | nonspecific: low PH (acidic), sebum oil, physical barrier, normal flora. |
| antigen display cell | is created after the macrophage englufs the pathogen. |
| helper t-cells make what two cells? | B cells and Killer T cells |
| B cells make what two cells? | Memory B cells and Plasma cells |
| Killer T cells make what two cells? | Active Killer T cells and Memory T cells |
| suppressor T cell | Lymphocyte that inhibits the activity of B and T lymphocytes |
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