Image:Cytotoxic T cell.jpg

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Summary

Description	Killer T cells—also called cytotoxic T lymphocytes or CTLs-directly attack other cells carrying certain foreign or abnormal molecules on their surfaces. CTLs are especially useful for attacking viruses because viruses often hide from other parts of the immune system while they grow inside infected cells. CTLs recognize small fragments of these viruses peeking out from the cell membrane and launch an attack to kill the cell.
Source	The Immune System (pdf)
Date	NIH Publication No. 03–5423, September 2003 (modifications: September 4, 2006)
Author	Template drawing and caption text from "The Immune System", any modifcations made by myself, are released into the public domain.
Permission ( Reusing this image)	Original work of the US Federal Government - public domain
Other versions	Image:Cytotoxic T cell-tr.jpg

License

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	Date/Time	Dimensions	User	Comment
current	17:47, 5 September 2006	500×514 (55 KB)	DO11.10	({{Information\| \|Description= \|Source=http://www.niaid.nih.gov/publication/immune/the _immune_system.pdf \|Date=September 4, 2006 \|Author=Template drawing from "The Imune System", any modifcations, made by myself are released into the public domain \|Permiss)

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Immune system

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