Biology:Intersphincteric groove
From HandWiki
| intersphincteric groove | |
|---|---|
 The interior of the anal canal and lower part of the rectum. (Line not shown but region is visible.) | |
| Details | |
| Identifiers | |
| Latin | sulcus intersphinctericus |
| Anatomical terminology | |
Intersphincteric groove or Hilton's white line is a boundary in the anal canal.[1]
Below it, lymphatic drainage is to the superficial inguinal nodes.[2]
Hilton's white line is slightly below the pectinate line, a landmark for the intermuscular border between internal and external anal sphincter muscles.
This 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 name.
It is named for John Hilton.[4]
See also
References
- ↑ Ewing MR (July 1954). "The white line of Hilton". Proceedings of the Royal Society of Medicine 47 (7): 525–30. PMID 13185975.
- ↑ "Pelvis". http://mywebpages.comcast.net/wnor/pelvis.htm. Retrieved 2007-12-09.
- ↑ "The Digestive System". http://ect.downstate.edu/courseware/histomanual/digestive.html. Retrieved 2009-01-14.
- ↑ synd/3030 at Who Named It?
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