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Skin, with scab and healing injury.

This image illustrates skin beneath a small scab over a minor injury.

The scab itself consists of clotted blood intermixed with inflammatory cells.

Between the scab and the skin is pus, consisting mostly of inflammatory cells (white blood cells, especially neutrophils and lymphocytes) which have gathered at the site to fight infection.

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Comments and questions: dgking@siu.edu

SIUC / School of Medicine / Anatomy / David King

http://www.siumed.edu/~dking2/intro/IN017b1.htm
Last updated:  29 July 2002 / dgk