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Anocutaneous line
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From Wikipedia, the free encyclopedia
The anocutaneous line, also called the Hilton white lineorintersphincteric groove, is a boundary in the anal canal.[1]
Below the anocutaneous line, lymphatic drainage is to the superficial inguinal nodes.[2]
The anocutaneous line is slightly below the pectinate line and a landmark for the intermuscular border between internal and external anal sphincter muscles.
The anocutaneous line represents the transition point from non-keratinized stratified squamous epithelium of the anal canal to keratinized stratified squamous epithelium of the anus and perianal skin.[3]
In live persons, the color of the line is white, hence the alternative name. It is named for John Hilton.[4]
See also[edit]
References[edit]
^ "The Digestive System". Retrieved 2009-01-14.
^ synd/3030atWho Named It?
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