Unit 11 Lymphatic System
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40 terms
Terms | Definitions |
|---|---|
 immunosuppression | treatment used to interfere with the ability of the immune system to respond to stimulation by antigens |
| immunotherapy | a treatment of disease either by enhancing or repressing the immune response |
| infectious mononucleosis | caused by the epstein-barr virus, is characterized by fever, a sore throat, and enlarged lymph nodes |
| infiltrating ductal carcinoma | also known as IDC, starts in the milk duct, breaks through the wall of that duct, and invades fatty breast tissue; accounts for the majority of all breast cancers |
| infiltrating lobular carcinoma | also known as ILC, is cancer that starts in the milk glands (lobules), breaks through the wall of that gland ad invades that fatty tissue of the breast |
| inguinal lymph nodes | lymph nodes located in the inguinal (groin) area of the lower abdomen |
| interferon | is produced by the t cells, is a family of proteins released by cells when invaded by a virus; causes noninfected cells to form an antiviral protein that slows or stops viral multiplication |
| kaposi's sarcoma | also known as KS, is an opportunistic infection frequently associated with HIV; may affect the skin, mucous membranes, lymph nodes, and internal organs |
| lumpectomy | the surgical removal of only the cancerous tissue and a margin (rim) of normal tissue |
| lymphadenitis | also known as swollen glands, is an inflammation of the lymph nodes |
| lymphadenopathy | any disease process usually involving enlargement of the lymph nodes |
| lymphangiogram | a radiographic study of the lymphatic vessels and nodes with the use of a contrast medium to make these structures visible |
| lymphangioma | a benign abnormal collection of lymphatic vessels forming a mass |
| lymphedema | an abnormal accumulation of fluid primarily in the legs and ankles that occurs when veins or lymph vessels do not drain properly |
| lymphocytes | are WBC's that specialize so they can attack specific microorganims; formed in bone marrow and undergo further maturation and differentiation in lymphatic tissue throughout the body including lymph nodes, spleen, thymus, tonsils, and peyer's patches; two major classes are b cells, and t cells |
| lymphokines | are produced by the t cells, direct the immune response by signaling between the cells of the immune system; attract macrophages to the infected site and prepare them to attack |
| lymphoma | a general term applied to malignancies that develop in the lymphatic system |
| macrophage | a type of phagocyte, protects the body by ingesting (eating) invading cells by interacting with the other cells of the immune system |
| metastasis | the new cancer site that results from the spreading process |
| metastasize | the verb that describes the process by which cancer spreads from one place to another |
| moniliasis | an infection of the skin or mucous membranes caused by the pathogenic yeast Candida albicans; generally localized in the mouth or the vagina |
| myoma | a benign tumor composed of muscle tissue |
| myosarcoma | a malignant tumor derived from muscle tissue |
| neoplasm | also known as a tumor, is a new abd abnormal tissue formation |
| neuroblastoma | a sarcoma of nervous system origin |
| phagocyte | a WBC witht he ability to ingest (eat) and destroy substances such as cell debris, dust, pollen, and pathogens |
| phagocytosis | process in which phagocytes engulf and digest microorganisms and cellular debris |
| rabies | an acute viral infection that may be transmitted to humans by the blood, tissue, or saliva of an infected animal |
| retinoblastoma | a malignant tumor of childhood arising from cells of the retina of the eye and usually occuring before the third year of life |
| rickettsia | a small bacterium that lives in lice, fleas, ticks, and mites; they transmit the infection to humans; rocky mountain spotted fever |
| rubella | also known as german measles or 3-day measles, is a viral infection characterized by fever and a diffuse, fine, red rash |
| sarcoma | a malignant tumor that arises from connective tissue |
| spirochetes | spiral-shaped bacteria that have flexible walls and are capable of movement; lyme disease |
| splenomegaly | an enlargement of the spleen |
| splenorrhagia | bleeding from the spleen |
| staphylococci | bacteria that form irregular groups or clusters; endocarditis, pneumonia, and some skin infections |
| streptococci | bacteria that form a chain; pharyngitis, also known as strep throat |
| teletherapy | radiation therapy administered at a distance from the body |
| thymus | located superior to (above) the heart; is composed largely of lymphatic tissue; plays an important role in the endocrine and immune systems |
| western blot test | detects the prescense of specific viral proteins, produces more accurate results |
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