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1Stack #44326
Ch 14, Lymphatic & Immune Sytems; Study Section
Question | Answer |
---|---|
allergen | Substance capable of causing a specific hypersensitivity in the body; a type of antigen. |
anaphylaxis | Exaggerated or unusual hypersensitivity to foreign protein or other substance. |
atopy | Hypersensitive or allergic state involving an inherited predisposition. |
CD4+ lymphocytes | 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. |
Hodgkin disease | Malignant tumor of lymph tissue in spleen and lymph nodes; Reed-Sternberg cell is often found on microscopic analysis. |
human immunodeficiency virus (HIV) | Virus (retrovirus) that causes AIDS. |
Kaposi sarcoma | Malignant (cancerous) condition associated with AIDS: arises from the lining of capillaries and appears as bluish-red skin nodules. |
opportunistic infections | Infectious diseases associated with AIDS; they occur because AIDS lowers the body's resistance and allows infection by bacteria and parasites that normally are contained. |
non-Hodgkin disease lymphoma | Group of malignant tumors involving lymphoid tissue. Examples are follicular lymphoma and large cell lymphoma. |
protease inhibitor | Drug that treats AIDS by blocking the production of protease, a proteolytic enzyme that helps to create new viral pieces for HIV. |
retrovirus | RNA virus that makes copies of itself by using the host cell's DNA; this is in reverse (retro-) fashion because the regular method is for DNA to copy itself onto RNA. |
reverse transcriptase inhibitor | Drug that treats AIDS by blocking reverse transcripase, an enzyme needed to make copies of the HIV virus. |