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  2. Rectum - Wikipedia

    en.wikipedia.org/wiki/Rectum

    The human rectum is a part of the lower gastrointestinal tract. The rectum is a continuation of the sigmoid colon, and connects to the anus. The rectum follows the shape of the sacrum and ends in an expanded section called an ampulla where feces is stored before its release via the anal canal.

  3. Anal canal - Wikipedia

    en.wikipedia.org/wiki/Anal_canal

    In humans, the anal canal is approximately 2.5 to 4 cm (0.98 to 1.57 in) long, from the anorectal junction to the anus. [2] [3] [4] It is directed downwards and backwards.. It is surrounded by inner involuntary and outer voluntary sphincters which keep the lumen closed in the form of an anteroposterior sl

  4. Human anus - Wikipedia

    en.wikipedia.org/wiki/Human_anus

    The anus is the site of potential infections and other conditions, including cancer (see anal cancer). [4] With anal sex, the anus can play a role in sexuality. Attitudes toward anal sex vary, and it is illegal in some countries. [5] The anus is often considered a taboo part of the body, [5] and is known by many, usually vulgar, slang terms.

  5. File:Rectum anatomy en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Rectum_anatomy_en.svg

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  6. Pelvic cavity - Wikipedia

    en.wikipedia.org/wiki/Pelvic_cavity

    The pelvic cavity also contains major arteries, veins, muscles, and nerves. These structures coexist in a crowded space, and disorders of one pelvic component may impact upon another; for example, constipation may overload the rectum and compress the urinary bladder, or childbirth might damage the pudendal nerves and later lead to anal weakness.

  7. Gastrointestinal tract - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_tract

    In human anatomy, the intestine (bowel or gut; Greek: éntera) is the segment of the gastrointestinal tract extending from the pyloric sphincter of the stomach to the anus and as in other mammals, consists of two segments: the small intestine and the large intestine.

  8. Pectinate line - Wikipedia

    en.wikipedia.org/wiki/Pectinate_line

    It is an important anatomical landmark in humans, and forms the boundary between the anal canal and the rectum according to the anatomic definition. [1] Colorectal surgeons instead define the anal canal as the zone from the anal verge to the anorectal ring (palpable structure formed by the external anal sphincter and the puborectalis muscle ...

  9. Transverse folds of rectum - Wikipedia

    en.wikipedia.org/wiki/Transverse_folds_of_rectum

    One is situated near the commencement of the rectum, on the right side. A second extends inward from the left side of the tube, opposite the middle of the sacrum. A third, the largest and most constant, projects backward from the forepart of the rectum, opposite the fundus of the urinary bladder.

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