anus
Digestive tract terminus
The anus is the opening at the end of the digestive tract through which solid waste is expelled from the body.
In anatomy, it refers specifically to the external opening of the rectum, controlled by sphincter muscles.
The word appears frequently in medical contexts but is also used in casual or vulgar speech.
The doctor examined the patient's anus for signs of hemorrhoids.
Anal is the adjective form, used both anatomically and in the slang sense of being excessively fastidious.
Expulsion of feces
- fecesSolid digestive waste
- stoolBackless sitting furniture
- excretionRemoval of metabolic waste
- eliminationAct of removing entirely
evacuation · continence · flatulence · gas · peristalsis · waste · straining · wiping
Terminal intestinal chamber
Study of rectal disorders
- colonoscopyLarge intestine examination
- hemorrhoidsSwollen anal blood vessels
- fissureNarrow crack in rock
- abscessLocalized pus collection
prolapse · incontinence · colorectal · perianal · fistula · polyp · biopsy · suppository
defecation
Expulsion of feces
elimination · evacuation · continence · flatulence · gas · peristalsis · waste · straining · wiping · hygiene
rectum
Terminal intestinal chamber
proctology
Study of rectal disorders
- colonoscopyLarge intestine examination
- hemorrhoidsSwollen anal blood vessels
- fissureNarrow crack in rock
abscess · prolapse · incontinence · colorectal · perianal · fistula · polyp · biopsy · suppository · enema
- Intestinesintestine, intestines, small intestine, large intestine, bowel
- pelvic anatomybladder, uterus, ovaries, rectum, vagina
- anorectal anatomyrectum, mucosa, submucosa, muscularis, sphincter
- digestionstomach acid, swallowing, digesting, chewing, digestion
- body passagesmouth, nose, ear, nostril, urethra
- colorectalcolon, rectum, cecum, caecum, ascending colon