Chapter 9

network of cells, tissues, and organs throughout the body that work together to protect the body against pathogens

anything that can damage the body including viruses, bacteria, toxins, or cancerous cells

white blood cells called lymphocytes

white blood cells; concentrated throughout the bodyt in the organs of the lymphatic system: lymph nodes, tonsils, thymus gland, and spleen

branch of medicine that diagnoses and treats conditions involving the immune system

immunologist who has specialized training in treating allergies

adenoids

protection

lymph

lymph node

lymph vessel

disease

eating

spleen

thymus

tonsils

cortes

cell

system (duh)

pertaining to

pertaining to

cell

dilated

surgical removal

swelling

that which produces

producing

protein

record

process of recording

abnormal condition

pertaining to

specialist

inflammation

one who studies

study of

softening

enlarged

resembling

tumor

abnormal condition

disease

surgical fixation

surgical repair

suture

stopping

treatment

poison

against

self

one

• (ARC)
• early stage of human immunodeficiency virus (HIV) infection in which mild symptoms of infection are present, including lymphadenopathy, fatigue, fever, night sweats, weight loss, and diarrhea

• (AIDS)
• later stage of human immunodeficiency virus (HIV) infection when the cells of the immune system lose their ability to fight off infection; patients become unable to resist oportunistic infections

physician specializing in diagnosis and treatment of allergies

hypersensitivity to a common substance in the environment, to food or to medication

life-threatening condition resulting from severe allergic reaction causing cardio-vascular and respiratory problems; may be triggered by bee stings, medications, or certian foods; also called anaphylaxis

medication that blocks effects of histamine released by body during allergic reactions

• (ANA)
• blood test that determines number of antibodies against cell nuclei present in bloodstream; elevated in autoimmune conditions

disease resulting from body's immune system attacking it's own cells as if they were pathogens; examples include systemic lupus erythematosus and sarcoidosis

hormones produced by adrenal cortes; used as medication to treat autoimmune diseases due to their very strong anti-inflammatory properties

cells capable of physically attacking and killing pathogens or diseased cells

results from blockage of lymphatic vessels that causes extreme tissue edema

• (ELISA)
• blood test for antibody to acquired immunodeficiency syndrom (AIDS) virus; positive result means the person has been exposed to virus

common name for appearance of wheals during allergic reaction

• (HD)
• cancer of lymphatic cells found in lymph nodes; also called Hodgkin lymphoma

having an immune system that is unable to respond properly to pathogens; also called immunocompromised

medication to block certain actions of immune system; used to prevent rejection of transplanted organ

tissue reponse to injury; characterized by redness, pain, swelling, and feeling hot to touch

• (KS)
• type of skin cancer often seen in patients with AIDS; consists of brownish-purple papules that begin in skin and spread to internal organs

• (mono)
• acute viral infection of lymphatic tissue with large number of abnormal white blood cells circulating in bloodstream

• (NHL)
• cancer of the lyphatic tissues other than Hodgkin lymphoma

infections seen in patients with compromised immune systems

• (PCP)
• opportunistic infection common in immunodeficient persons

autoimmune disease with fibrous lesions forming in lymph nodes, liver, skin, lungs, spleen, eyes, and small bones of hands and feet

type of allergy testing in which body is exposed to allergens through a light scratch in skin

• (SCIDS)
• genetic condition of children born with nonfunctioning immune system who often farced to live in sealed sterile rooms

• (SLE)
• autoimmune disease in which immune system attacks connective tissue throughout body such as in joints and skin

severe itching associated with hives, usually seen in allergic reactions to food, stress, or medications

exposure to weakened pathogen to stimulate immune response and antibody production to give future protections against full blown disease; also called immunization

blood test to detect various antibodies in bloodstream such as HIV antibodies; considered more precise than ELIZA