part 1 questions pls help

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in the future u can just google it but here ya go anyway:

Shwartzman rxn/phenomenon:
Reaction that occurs when two injections of endotoxin are given to the same animal, particularly rabbits, 24h apart. In the local Shwartzman reaction the first injection is given intradermally, the second intravenously and a haemorrhagic reaction develops at the dermal site. If both injections are intravenous the result is a generalised Shwartzman reaction, often accompanied by disseminated intravascular coagulation. The reaction depends upon the response of platelets and neutrophils to endotoxin.
(online medical dictionary)

Arthus rxn:
In immunology, the Arthus reaction is a type of local type III hypersensitivity reaction. Type III hypersensitivity reactions are immune complex-mediated, and involve the deposition of antigen/antibody omplexes mainly in the vascular walls, serosa (pleura, pericardium, synovium), and glomeruli.

Check out the full article on Wikipedia.com
 
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