Anorectal Anatomy

Perineal flexure with the lower part of the rectum anorectal junction and measures from 25 to 4 cm. The anal canal extends from the anorectal sphincter to the anal verge usually 36 cm in length 4 6 7 9.

Anorectal Anatomy By Tiffany Hwang On Prezi

At the anorectal flexure or angle the anorectal junction is pulled anterosuperiorly by the puborectal sling to continue below as the anal canal.

Anorectal anatomy. The anal margin extends from the anal verge or the introitus of the anal orifice and extends in a 56 cm radius across the external skin covered region. Lateral to the anal canal are the pyramidal ischioanal ischiorectal fossae 1 on either side. Because anal incontinence is a complex entity an understanding of normal anorectal physiology increases the ability to successfully categorize evaluate and diagnose the etiology and treat the.

Anorectal muscles circular layer of rectum be comes internal anal sphincter longitudinal layer of rectum becomes intersphincteric fascial plane external anal sphincter is composed of three parts levator ani contributes pubo rectalis which is continuous with deep external anal sphincter tube within a tube inner tube. Gross anatomy of the anorectum. The anal canal forms an angle anorectal flexure.

Levator ani and coccygeus muscles form the pelvic diaphragm. Scribd is the worlds largest social reading and publishing site. Anorectal anatomy free download as pdf file pdf text file txt or read online for free.

Git Anatomy The Rectum And The Anal Canal