The authors measured the length of the surgical anal canal anorectal ring to anal verge in men and women; the age ranged from 18 to 90 years average 59 years. The average length of the surgical anal canal was 4. In men the average length was 4. The average length of the anatomic anal canal dentate line to anal verge was 2. In men, the average length was 2.
The Anal Canal
The Anal Canal - Structure - Arterial Supply - TeachMeAnatomy
The length of the anal canal
The anal canal is the terminal segment of the large intestine , between the rectum and anus , located below the level of the pelvic diaphragm. It is located within the anal triangle of the perineum , between the right and left ischioanal fossa. As the final functional segment of the bowel , it functions to regulate release of excrement by two muscular sphincter complexes. The anus is the aperture at the terminal portion of the anal canal.
The anal canal is located within the anal triangle of the perineum between the right and left ischioanal fossae. It is the final segment of the gastrointestinal tract, around 4cm in length. The canal begins as a continuation of the rectum and passes inferoposteriorly to terminate at the anus. Except during defecation, the anal canal is collapsed by the internal and external anal sphincters to prevent the passage of faecal material.