Coccygeus muscle

Coccygeus muscle
Left levator ani from within.
Details
OriginSacrospinous ligament and ischial spine
InsertionLateral margin of coccyx and related border of sacrum
NervePudendal nerve; sacral nerves: S4, S5[1] or S3-S4[2]
ActionsPulls coccyx forward after defecation, closing in the back part of the outlet of the pelvis
Identifiers
Latinmusculus coccygeus
TA98A04.5.04.011
TA22412
FMA19088
Anatomical terms of muscle

The coccygeus muscle or ischiococcygeus is a muscle of the pelvic floor located posterior to levator ani and anterior to the sacrospinous ligament.

  1. ^ Essential Clinical Anatomy. K.L. Moore & A.M. Agur. Lippincott, 2 ed. 2002. Page 217
  2. ^ "uams.edu". Archived from the original on 2007-12-16. Retrieved 2007-12-09.