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anus    
n. 肛门

肛门

anus
n 1: the excretory opening at the end of the alimentary canal

Anus \A"nus\, n. [L., prob. for asnus: cf. Gr. ? to sit, Skr.
[=a]s.] (Anat.)
The posterior opening of the alimentary canal, through which
the excrements are expelled.
[1913 Webster]


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  • Anus: Function, Anatomy, Conditions Diagram - Cleveland Clinic
    Your anus is the end of your large intestine, where food waste completes its journey through your digestive tract and makes its exit Muscles, nerves and mucous membranes in your anus work together to make healthy bowel movements that you can control
  • Overview of the Anus and Rectum - The Merck Manuals
    The anus is the opening at the end of the digestive tract where stool leaves the body The rectum is the section of the digestive tract above the anus where stool is held before it passes out of the body through the anus
  • Anal cancer vs. hemorrhoids: How to know the difference
    Everyone is born with hemorrhoids But when they become enlarged, they can cause symptoms that mimic anal cancer symptoms Colon and rectal surgeon Craig Messick M D , explains how the two conditions differ and when to see a doctor for symptoms
  • Anal Anatomy - Anal Neoplasia Clinic, Research and Education Center
    The anal canal is the most distal portion of the lower digestive tract and is approximately 2-3 inches long It is enclosed by the internal and external sphincter muscles The proximal portion of the anus is connected to the rectum, which is the final section of the large intestine
  • Anus (Human Anatomy): Picture, Definition, Diseases, More
    In addition to its role in elimination, the anus is also involved in sexual activity for many people The anus is surrounded by sensitive nerve endings and can be a source of pleasure and stimulation for both men and women
  • Human digestive system - Rectum, Anus, Digestion | Britannica
    Human digestive system - Rectum, Anus, Digestion: The rectum, which is a continuation of the sigmoid colon, begins in front of the midsacrum (the sacrum is the triangular bone near the base of the spine and between the two hipbones)
  • Anus - Structure, Function Location
    The anus is the terminal opening of the digestive tract through which feces are expelled from the body It marks the end of the anal canal and plays a critical role in the voluntary and involuntary control of defecation
  • Anatomy of the Anus - University of Rochester Medical Center
    It consists of a muscular ring (called a sphincter) that opens during a bowel movement to allow stool (feces) to pass through and flat cells that line the inside of the anus





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