The Coccygeus is a muscle of the pelvic wall (i.e. peripheral to the pelvic floor), situated behind the levator ani and in front of the sacrospinous ligament. It is a triangular plane of muscular and tendinous fibers, arising by its apex from the spine of the ischium and sacrospinous ligament, and inserted by its base into the margin of the coccyx and into the side of the lowest piece of the sacrum. It assists the Levator ani and Piriformis in closing in the back part of the outlet of the pelvis. [WP,unvetted]. [ http://en.wikipedia.org/wiki/Coccygeus_muscle ]
Synonyms: coccygeus ischiococcygeus musculus ischiococcygeus
Term information
uberon_slim, organ_slim, human_reference_atlas
Term relations
- lateral structure
- muscle of pelvis
- in lateral side of some pelvic region of trunk
- has muscle origin some ischial spine
- innervated_by some sacral nerve