anus [a´nus] (pl. a´nus)
the opening of the rectum on the body surface.
The anus. Left, Endoanal magnetic resonance image of the sphincter muscles. High-definition images can be obtained by using an endoanal MRI coil. Right, Explanatory diagram (coronal view in a normal patient). From Aspinall and Taylor Robinson, 2001.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
a·nus, gen. and pl.
ani (ā'nŭs, -nī), [TA]
The lower opening of the digestive tract. It is associated with the anal sphincter and lies in the cleft between the buttocks, through which fecal matter is extruded.
Farlex Partner Medical Dictionary © Farlex 2012
n. pl. anuses
The opening at the lower end of the digestive tract through which solid waste is eliminated from the body.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
anus The anatomic structure which opens to the rectum. It is covered by squamous epithelium and is susceptible to HPV and other infections.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
a·nus, gen. and pl. ani (ā'nŭs, ā'nī) [TA]
The lower opening of the alimentary (digestive) tract, lying in the intergluteal cleft between the buttocks, through which feces or excrement is discharged.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
anus The short terminal portion of the ALIMENTARY CANAL which contains two SPHINCTERS by means of which the contents of the RECTUM are retained until they can conveniently be discharged as faeces. Between the sphincters are 6 to 10 vertical columns of mucous membrane containing plexuses of veins. These press together to form watertight seals.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
anus the posterior opening of the ALIMENTARY CANAL, often surrounded by a ring of muscle called the anal SPHINCTER, which is under nervous control (see AUTONOMIC NERVOUS SYSTEM and which regulates the release of gut contents to the outside (DEFECATION).
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
The opening at the lower end of the rectum. The anus and rectum are both part of the large intestine, a digestive system organ.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
Patient discussion about anus
Q. Pulling pain in anus. Dear friends, I am 32. I feel a Pulling pain in anus sometimes while i finish passing stool and some times when i sit for long time. No bleeding so far. Is it a symptoms of piles? If so what can be done to cure it without going to doctor or operation. Please help me. This pain makes me to feel that i am very old.
A. horsechestnut is supposed to help...here is some info about it:More discussions about anus
but i wouldn't get my hopes high.
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