Anatomy

Anal Canal

The terminal segment of the LARGE INTESTINE, beginning from the ampulla of the RECTUM and ending at the anus.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The terminal segment of the LARGE INTESTINE, beginning from the ampulla of the RECTUM and ending at the anus.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

See Also

MeSH Record

Synonyms

21 entry terms
  • Anal Gland
  • Anal Gland, Human
  • Anal Glands, Human
  • Anal Sphincter
  • Anus
  • Detrusor External Sphincter
  • External Anal Sphincter
  • Internal Anal Sphincter
  • Anal Sphincter, External
  • Anal Sphincter, Internal
  • Anal Sphincters
  • Detrusor External Sphincters
  • External Anal Sphincters
  • Human Anal Gland
  • Human Anal Glands
  • Internal Anal Sphincters
  • Sphincter, Anal
  • Sphincter, Detrusor External
  • Sphincter, External Anal
  • Sphincter, Internal Anal
  • Sphincters, Anal

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, innervation, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, transplantation, ultrastructure, virology.

MeSH Record

Indexing Annotation

inflammation = PROCTITIS; do not confuse entry term ANAL GLAND with ANAL GLANDS, ANIMAL see ANAL SACS; /abnorm: consider also ANORECTAL MALFORMATIONS

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Anal Canal. Medical Subject Headings (MeSH). 2026. Unique ID D001003. http://id.nlm.nih.gov/mesh/2026/D001003
  2. Anal Canal. In: Wikipedia. https://en.wikipedia.org/wiki/Anal_canal
  3. Anal Canal. In: Wikidata. https://www.wikidata.org/wiki/Q2465231