Rectal

From WikiMD's Wellnesspedia

Rectal refers to anything related to the rectum, the final section of the large intestine that terminates at the anus. The primary function of the rectum is to store feces until defecation.

Anatomy[edit | edit source]

The rectum is a part of the lower gastrointestinal tract. It starts at the end of the sigmoid colon and ends at the anus. It is approximately 12 cm long. The rectum is divided into three parts: the upper third, middle third and lower third. The upper two-thirds are lined by rectal columns, also known as columns of Morgagni, while the lower third is lined by skin.

Function[edit | edit source]

The rectum serves the important purpose of temporarily storing feces before they are eliminated from the body through the anus. The rectum coordinates with the anal sphincters to control the expulsion of feces, a process known as defecation.

Diseases and conditions[edit | edit source]

Various diseases and conditions can affect the rectum. These include:

  • Rectal cancer: A type of cancer that occurs in the rectum. It is a part of colorectal cancer, which is the third most common type of cancer in the United States.
  • Rectal prolapse: A condition in which the rectum becomes detached inside and falls down through the anus.
  • Hemorrhoids: Swollen blood vessels in the rectum or anus that can cause discomfort and bleeding.
  • Proctitis: Inflammation of the lining of the rectum, often caused by infections or inflammatory bowel disease.
  • Rectocele: A condition in which the wall of the rectum bulges into the vagina.

See also[edit | edit source]


Rectal Resources

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Contributors: Bonnu, Prab R. Tumpati, MD