Iliococcygeus (Left) (Musculus iliococcygeus)
Educational content only — not medical advice.
Anatomy
The iliococcygeus is the posterolateral sheet of the levator ani muscle complex, spanning from the tendinous arch of the obturator fascia and ischial spine to the anococcygeal body. In this BP3D model, the muscle is represented across two separate mesh parts (part 2).
Origin & insertion
From the ischial spine and tendinous arch of obturator fascia to the anococcygeal ligament and coccyx.
Action
Elevates and supports the pelvic viscera against intra-abdominal pressures.
Innervation
Nerve to levator ani (S4) and branches of pudendal nerve (S3–S4).
Clinical notes
Targeted pelvic floor muscle training (Kegel exercises) improves muscle tone and treats mild-to-moderate pelvic organ prolapse.
Related structures
Educational references
FAQ
What is the role of the Iliococcygeus (Left)?
The iliococcygeus is the posterolateral sheet of the levator ani muscle complex, spanning from the tendinous arch of the obturator fascia and ischial spine to the anococcygeal body. In this BP3D model, the muscle is represented across two separate mesh parts (part 2).
Why is the Iliococcygeus (Left) clinically important?
Targeted pelvic floor muscle training (Kegel exercises) improves muscle tone and treats mild-to-moderate pelvic organ prolapse.
Source & license
BodyParts3D, © The Database Center for Life Science licensed under CC Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/). license details