Anal canal

Introduction: Anal canal

Description of Anal canal

Anal canal: [TA] terminal portion of the alimentary canal; about 4 cm long, beginning at the anorectal junction, where the rectal ampulla abruptly narrows as the alimentary canal pierces the pelvic diaphragm (levator ani), and ending at the anal verge, when the anoderm that lines the lower anal canal changes to hairy perianal skin; surrounded by the internal and external anal sphincters. SYN: canalis analis [TA].
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.

Anal canal: The terminal segment of the LARGE INTESTINE, beginning from the ampulla of the RECTUM and ending at the anus.
Source: MeSH 2007

Anal canal: Related Topics

These medical condition or symptom topics may be relevant to medical information for Anal canal:

• Anal
• Canal

Anal canal as an Organ

Anal canal (organ): The anal canal is the last section of the gastrointestinal tract. The anal canal connects the rectum of the large intestine to the outside of the body and allows feces to exit the body through the anus. The anal canal also contains the internal anal sphincter and the external anal sphincter, which are involved in the control of elimination.

Conditions that afflict the anal canal include anal cancer, incontinence, hemorrhoids, anal fissure, and imperforate anus.

Anal canal (organ): See Anal Canal (organ information).

More information on organs: Anal Canal:

• Anal Canal

Terms associated with Anal canal:

Terms Similar to Anal canal:

• Anal Gland, Human
• Anal Sphincter
• Anus

Source - MeSH 2007

Related Topics

• Proctoscopy

Source - MeSH 2007

Broader terms for Anal canal

• Intestine, Large

Source - MeSH 2007

Hierarchical classifications of Anal canal

The following list attempts to classify Anal canal into categories where each line is subset of the next.

MeSH 2007 Hierarchy:

• Digestive System
  • Gastrointestinal Tract
    • Intestines
      • Intestine, Large
        • Anal Canal

MeSH 2007 Hierarchy

• Digestive System
  • Gastrointestinal Tract
    • Lower Gastrointestinal Tract
      • Intestine, Large
        • Anal Canal

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Medical dictionaries:

• Medical dictionary,
• Medical Acronymns/Abbreviations

More Medical Dictionary Topics

Bicuspid

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