Lasts Anatomy Regional and Applied. Read it at Google Books - Find it at Amazon 2. The epithelium of the anal canal between the anal verge below and the pectinate line above is variously described as anal mucosa or anal skin. If you log out, you will be required to enter your username and password the next time you visit. The following structures are palpable per rectum:. They extend exclusively from the anal canal and follow the inferior hemorroidal vessels across the ischiorectal fossa and terminate the inguinal nodes. During posterior or lateral sphincterotomy for fissure in ano, it is only the internal sphincter that is divided.
Posted in Digestive System, Lymphatic Drainage of Rectum and Anal Canal, Rectum and Anal Canal Lymphatic Drainage of the Rectum and Anal Canal. In surgical usage, however, the anal canal is frequently limited to that part of the intestine below the pectinate line; this part differs from the part above the pectinate line in several respects, including innervation, venous and lymphatic drainage, and possibly lining epithelium. The anal canal (fig. The anal canal is the final segment of the gastrointestinal tract, extending between the rectum and the anus. innervation and lymphatic drainage. /5(8).
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