Create an account
harmful antigen antibody reaction involving foreign antigen in food, pollen or chemical.
hereditary tendency to develop IgE mediated allergic reactions to allergen that doesn't bother the normal individual.
ana-against, phylaxis-protection. immediate hypersensitivity reaction from sensitization of tissue fixed mast cells by IgE.
Define anaphylactoid reaction.
anaphylaxis not of IgE origin. maybe by activation of complement - generation of anaphylatoxins C3a, C4a, C5a. cause degranulation of mast cells, release of vasoactive mediators.
allergic reaction require prior immunization by allergen that elicits the acute response.
Which hypersensitivity involves antigen-antibody complex inducing complement activation and inflammatory response by massive infiltration of neutrophils?
Which hypersensitivity involves sensitized helper T cells that release cytokines that activate macrophages or cytotoxic T cells that mediate direct cellular damage?
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together