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Anus - Anatomy & Physiology (view source)

282 bytes removed , 14:57, 14 July 2008

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***Surrounds the anus.

***Excretory ducts of the '''anal sacs''' open into this region.

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****Large, coiled apocrine tubules.

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****Have many glands in their walls.

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****These glands are tubuloalveolar and produce a fatty secretion.

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****Anal sacs are clinically important as they are commonly diseased in dogs - frequently, they become enlarged due to accumulated secretion.

==Species Differences==

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