Chap 14, Lymphatic and Immune Systems, Study Section Flashcards Preview

Medical Terminology, LOM > Chap 14, Lymphatic and Immune Systems, Study Section > Flashcards

Flashcards in Chap 14, Lymphatic and Immune Systems, Study Section Deck (12)
1

allergen

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

2

anaphylaxis

Exaggerated or unusual hypersensitivity to foreign protein or other substance.

3

atopy

Hypersensitive or allergic state involving an inherited predisposition.

4

CD4+ cells

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 an inadequate number of CD4+ cells.

5

Hodgkin disease

Malignant tumor of lymphoid tissue in spleen and lymph nodes; Reed-Sternberg cell often is found on microscopic analysis.

6

human immunodeficiency virus (HIV)

Virus (retrovirus) that causes AIDS.

7

Kaposi sarcoma

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

8

non-Hodgkin lymphomas

Group of malignant tumors involving lymphoid tissue. Examples are follicular lymphoma and large cell lymphoma.

9

opportunistic infections

Infectious disease associated with AIDS; they occur because HIV infection lowers the body's resistance and allows infection by bacteria and parasites that normally are easily contained.

10

protease inhibitor

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

11

reverse transcriptase inhibitor (RTI)

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

12

wasting syndrome

Weight loss, decrease in muscular strength, appetite, and mental activity; associated with AIDS.

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