Anatomy

Rectum

The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

1 entry terms
  • Rectums

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

/surg: do not confuse with the specialty COLORECTAL SURGERY; rectal bleeding: RECTUM + HEMORRHAGE, GASTROINTESTINAL for bleeding through the rectum; hemorrhaging rectum is RECTAL DISEASES + HEMORRHAGE, GASTROINTESTINAL; inflammation = PROCTITIS; /abnorm: consider also ANORECTAL MALFORMATIONS

MeSH Hierarchy

Tree Numbers

  1. A03w.556w.124w.526w.767w
  2. A03w.556w.249w.249w.767w

AMA Style

References

  1. National Library of Medicine. Rectum. Medical Subject Headings (MeSH). 2026. Unique ID D012007. http://id.nlm.nih.gov/mesh/2026/D012007
  2. Rectum. In: Wikipedia. https://en.wikipedia.org/wiki/Rectum
  3. Rectum. In: Wikidata. https://www.wikidata.org/wiki/Q158716