Ch 14 Lymphatic Study Section

Question 1

allergen

Answer 1

substance capable of causing a specific hypersensitivity reaction in the body; a type of antigen

Question 2

anaphylaxis

Answer 2

exaggerated or unusual hypersensitivity to foreign protein or other substance

Question 3

atopy

Answer 3

hypersensitive or allergic state involving an inherited predisposition (from Greek atopia meaning strangeness)

Question 4

CD4+ cells

Answer 4

helper T cells that carry the CD4 protein antigen on their surface. HIV binds to CD4 and infects and kills T cells bearing this protein. AIDS patients have inadequate number of CD4+ cells

Question 5

Hodgkin disease

Answer 5

malignant tumor of lymphoid tissue in the spleen and lymph nodes; Reed-Sternberg cell often found on microscopic analysis

Question 6

HIV

Answer 6

human immunodeficiency disease; virus (retrovirus) that causes AIDS

Question 7

Kaposi sarcoma

Answer 7

malignant lesion associated with AIDS; arises from the linings of capillaries and appears as red, purple, brown, or black skin nodules

Question 8

non-Hodgkin lymphoma

Answer 8

group of malignant tumors involving the lymphoid tissue- follicular lymphoma and large cell lymphoma

Question 9

opportunistic infections

Answer 9

infectious diseases associated with AIDS; they occur because HIV infection lowers the body’s resistance and allows infection by bacteria and parasites that are normally easily contained

Question 10

protease inhibitor

Answer 10

drug that treats AIDS by blocking the production of protease, a proteolytic enzyme that helps create new viral pieces for HIV

Question 11

reverse transcriptase inhibitor (RTI)

Answer 11

drug that treats AIDS by blocking reverse transcriptase, an enzyme needed to make copies of HIV

Question 12

wasting syndrome

Answer 12

weight loss, decreases in muscular strength, appetite, and mental activity; associated with AIDS