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Rectum - Anatomy & Physiology (view source)

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==[[Rectum - Histology|Histology]]==

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~~===Recto-Anal Junction===~~

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~~[[Image:Recto-Anal Junction.jpg|thumb|right|150px|Recto-Anal Junction © RVC 2008]]~~

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*Termination of the lamina muscularis and longitudinal layer of the tunica muscularis.

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*The circular layer of the tunica muscularis forms the internal anal sphincter.

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*The external anal sphincter is formed from skeletal muscle.

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*Epithelium changes from columnar to stratified squamous non-keratinised.

==Species Differences==

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