Library Articles Reviews
Previous Anatomy Next Anatomy

Muscles of Anal Triangle 3D

  • External anal Sphincter Muscle
    • * Originates from the perineal body and anococcygeal raphe and inserts into the perianal skin.
    • * Is supplied by the inferior rectal artery and the inferior rectal branch of the pudendal nerve.
    • * Its action is to maintain fecal continence.

 

  • Puborectalis Muscle
    • * Originates from the pubic bone and tendinous arch of the levator ani muscle and inserts into the anorectal junction.
    • * Is supplied by the inferior rectal artery and middle rectal artery and the inferior rectal branch of the pudendal nerve.
    • * Its action is to maintain the anorectal angle and aid in defecation.

 

  • Levator Ani Muscles
    • * The levator ani muscles have two parts: pubococcygeus and iliococcygeus.
    • * The pubococcygeus originates from the pubic bone and tendinous arch of the levator ani muscle while the iliococcygeus originates from the inner surface of the pelvic bones.
    • * They both insert into the coccyx and anococcygeal raphe.
    • * Are supplied by the inferior rectal artery and middle rectal artery, branches of the sacral plexus including the pudendal nerve and pelvic splanchnic nerves.
    • * Their action is to provide support to the pelvic organs, maintain fecal continence, and aid in defecation.

 

  • Coccygeus Muscle
    • * Originates from the ischial spine and inserts into the sacrum and coccyx.
    • * Is supplied by the superior gluteal artery and branches of the sacral plexus including the pudendal nerve and pelvic splanchnic nerves.
    • * Its action is to provide support to the pelvic organs, maintain fecal continence, and aid in defecation.

This video is not approved for CME yet. Please check in a few days for the approval result. Thank you for your patience.

Write A New Comment

0 Comments

  • External anal Sphincter Muscle
    • * Originates from the perineal body and anococcygeal raphe and inserts into the perianal skin.
    • * Is supplied by the inferior rectal artery and the inferior rectal branch of the pudendal nerve.
    • * Its action is to maintain fecal continence.

 

  • Puborectalis Muscle
    • * Originates from the pubic bone and tendinous arch of the levator ani muscle and inserts into the anorectal junction.
    • * Is supplied by the inferior rectal artery and middle rectal artery and the inferior rectal branch of the pudendal nerve.
    • * Its action is to maintain the anorectal angle and aid in defecation.

 

  • Levator Ani Muscles
    • * The levator ani muscles have two parts: pubococcygeus and iliococcygeus.
    • * The pubococcygeus originates from the pubic bone and tendinous arch of the levator ani muscle while the iliococcygeus originates from the inner surface of the pelvic bones.
    • * They both insert into the coccyx and anococcygeal raphe.
    • * Are supplied by the inferior rectal artery and middle rectal artery, branches of the sacral plexus including the pudendal nerve and pelvic splanchnic nerves.
    • * Their action is to provide support to the pelvic organs, maintain fecal continence, and aid in defecation.

 

  • Coccygeus Muscle
    • * Originates from the ischial spine and inserts into the sacrum and coccyx.
    • * Is supplied by the superior gluteal artery and branches of the sacral plexus including the pudendal nerve and pelvic splanchnic nerves.
    • * Its action is to provide support to the pelvic organs, maintain fecal continence, and aid in defecation.

Following answers are created by ChatGPT. Occasionally the answer may be harmful, incorrect, false, misleading, incomplete, or limited in knowledge of world. Please contact your doctor for all healthcare decisions. Also, double check the answer provided by the AI below.

Please login to access this content.

Don't have an account?

Start Your Free trial

No credit card information needed.

Anatomy Atlases and Descriptions

Related Videos

Privacy Policy

Terms and Conditions

FAQ

Contact Us

All information contained in and produced by DrBeen corp is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease.

THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER.

Click here for notice and disclaimer.
Copyright © 2015-2024 all rights reserved by DrBeen Corp