Spiral valve

From Biocrawler, the free encyclopedia.

In comparing the intestine of a shark, with the intestine of a human being, it can be seen that it is proportionately much shorter. Sharks have compensated for this apparent problem by having a spiral valve, or a scroll valve, inside the intestine to increase the absorptive surface of the intestine.

Wikipedia (http://en.wikipedia.org/wiki/Main_Page) Spiral_valve (http://en.wikipedia.org/wiki/Spiral_valve) version history (http://en.wikipedia.org/w/index.php?title=Spiral_valve&action=history) GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License) CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)

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