blood, lymphatic and immune system ch.6 med term

  1. antigen
    substance that, when entering the body, prompts the generation of antibodies, causing an immune response
  2. autoimmune
    type of immune response by the body against its own cells or tissues
  3. capillaries
    microscopic blood vessels that connect the ends of the smallest arteries (arterioles) with the smallest veins (venules) of the circulatory system
  4. hematopoiesis
    production and development of blood cells, normally in the bone marrow
  5. immune response
    defense function of the body that protects it against invading pathogens, foreign tissues, and malignancies
  6. immunodeficiency
    decreased or compromised ability to fight disease or a condition resulting from a defective immune mechanism
  7. interstitial fluid
    fluid between cells and in tissue spaces
  8. lymphocyte
    type of wbc found in the lymph nodes, spleen, bloodstream, and lymph that functions in the body's immune system by recognizing and deactivating foreign substances (antigens)
  9. monocytes
    large wbc's formed in the bone marrow that circulate in the bloodstream and destroys pathogenic bacteria through phagocytosis
  10. oncology
    branch of medicine concerned with the study of cancerous growths (malignancies)
  11. pathogens
    any microorganism capable of producing disease
  12. transfusion
    collection of blood or a blood components from a donor followed by its infusion into a recipient
  13. anemia
    blood disorder characterized by a deficiency of red blood cell production and hemoglobin, increased red blood cell destruction, or blood loss
  14. aplastic anemia
    failure of bone marrow to produce stem cells because it has been damaged by disease, cancer, radiation, or chemotherapy drugs; rare but serious form of anemia
  15. pernicious anemia
    deficiency of erythrocytes due to inability to absorb vitamin b12 into the body, which plays a vital role in hematopoiesis
  16. sickle cell anemia
    hereditary disorder of anemia characterized by crescent or sickle-shaped erythrocytes; particularly prevalent among persons of African descent
  17. thalassemia
    group of hereditary anemias caused by an inability to produce hemoglobin; usually seen in people of Mediterranean origina
  18. hemophilia
    group of hereditary bleeding disorders characterized by a deficiency of one of the factors necessary for coagulation of blood
  19. leukemia
    malignant disease of the bone marrow characterized by excessive production of leukocytes
  20. acquired immune deficiency syndrome (AIDS)
    deficiency of cellular immunity induced by infection with the human immunodeficiency virus (HIV), characterized by increasing susceptibility to infections, malignancies, and neurological diseases.
  21. hodgkin disease
    malignant disease characterized by painless, progressive enlargement of lymphoid tissue (usually first eveident in cervical lymph nodes), splenomegaly, and the presence of unique Reed-Sternbery cells in the lymph nodes
  22. HIV
    retrovirus that causes AIDS
  23. immunodeficiency disease
    any of a group of diseases caused by a defect in the immune system and generally characterized by susceptibility to infections and chronic diseases
  24. Kaposi sarcome
    malignancy of connective tissue, including bone, fat, muscle, and fibrous tissue that is commonly fatal (because the tumors readily metastasize to various organs) and closely associated with AIDS
  25. lymphadenitis
    inflammation and enlargement of the lymph nodes usually as a result of infection
  26. lymphedema
    debilitating condition of localized fluid retention and tissue swelling caused by a blockage in the lymphatic system that prevents lymph fluid in the upper limbs from draining adequately
  27. mononucleosis
    actue infection caused by the Epstein-Barr virus (EBV) and characterized by a sore throat, fever, fatigue, and enlarged lymph nodes
  28. multiple myeloma
    malignant disease of bone marrow plasma cells (antibody-producing B lymphocytes)
  29. non-Hodgkin lymphoma
    any of a heterogeneous group of malignant tumors involving lymphoid tissue except for Hodgkin disease; previously called lymphosarcoma
  30. opportunistic infection
    any infection that results from a defective immune system that cannot defend against pathogens normally found in the environment
  31. stroke
    sudden loss of neurological function, caused by vascular injury (loss of blood flow) to an area of the brain; also known as CVA
  32. systemic lupus erythematosus (SLE)
    chronic autoimmune inflammatory disease with variable features that affect many body systems, particularly the skin, kidneys, heart, and lungs
  33. bone marrow aspiration
    removal of a small amount of tissue (bone marrow biopsy) to diagnose blood disorders (such as anemias), cancers, or infectious diseases or to gather cells for later infusion into a patient (bone marrow transplantation)
  34. ELISA
    test to screen blood for presence of HIV antibodies or for other disease-causing substances
  35. lymphangiography
    radiographic examination of lymph glands and lymphatic vessels after an injection of a contrast medium to view the path of lymph flow as it moves into the chest region
  36. tissue typing
    technique used to determine the histocompatibility of tissues; used in grafts and transplants with the recipient's tissues and cells; also known as histocompatibility testing
  37. western blot
    test to detect presence of viral DNA in the blood and used to confirm the diagnosis of AIDS as well as detecting other viruses
  38. blood transfusion
    administration of whole blood or a component, such as packed red cells, to replace blood lost through trauma, surgery, or disease
  39. bone marrow transplant
    diseased bone marrow is destroyed by irradiation and chemotherapy, then replaced from a healthy donor to simulate production of normal blood cells; used to treat aplastic anemia, leukemia, and certain cancers
  40. lymphangiectomy
    removal of a lymph vessel
  41. anticoagulants
    prevent or delay blood coagulation
  42. immunizations
    vaccination or injection of immune globulins to induce immunity to a particular infectious disease
  43. immunosuppressants
    suppress the immune response to prevent organ rejection after transplantation or slow the progression of autoimmune disease
  44. thrombolytics
    dissolve a blood clot
  45. vaccinations
    introduction of altered antigens (viruses or bacteria) into the body to produce an immune response and protect against disease
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blood, lymphatic and immune system ch.6 med term
med term ch.6 blood,lymphatic, and immune system