Anatomy of the rectum and anal canal

Bazira, Peter J.

Abstract

The rectum and anal canal are the terminal portions of large intestine and the entire gastrointestinal tract. They are thus readily accessible to direct inspection and examination. The rectum functions as a distensible reservoir for faeces, while the anal canal possesses a powerful muscular sphincter in its wall which is important in maintaining faecal continence. Diseases of the rectum and anal canal, both benign and malignant, account for a very large part of colorectal surgical practice worldwide. This article emphasizes the clinically and surgically relevant aspects of the anatomy of the rectum and anal canal.

Citation

Bazira, P. J. (2023). Anatomy of the rectum and anal canal. Surgery (Oxford), 41(1), 7-14. https://doi.org/10.1016/j.mpsur.2022.11.002

• Journal Article Type: Review
• Acceptance Date: Nov 28, 2022
• Online Publication Date: Dec 7, 2022
• Publication Date: Jan 1, 2023
• Deposit Date: Oct 31, 2024
• Journal: Surgery (United Kingdom)
• Print ISSN: 0263-9319
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 41
• Issue: 1
• Pages: 7-14
• DOI: https://doi.org/10.1016/j.mpsur.2022.11.002
• Keywords: Anal cushions; Anal sphincters; Inferior hypogastric plexus; Lymphatic drainage; Mesorectum; Perineum; Rectal blood supply
• Public URL: https://hull-repository.worktribe.com/output/4161503