Coccygeal plexus
Plan of sacral and pudendal plexuses.
FromS4-S5, coccygeal nerve
Toanococcygeal nerve
Latinplexus coccygeus
Anatomical terms of neuroanatomy

The coccygeal plexus is a small nervous plexus upon the pelvic (anterior) surface of the coccygeus muscle.[1]

This plexus is formed by the ventral rami of the fourth and fifth sacral nerves (S4-S5), and the ventral ramus of the coccygeal nerve (Co). The relative contributions of S4 and S5 are minor and major, respectively. The coccygeal plexus gives rise to the anococcygeal nerve.[2]

The coccygeal plexus is distributed to the coccygeus muscle, part of the levator ani muscle, the sacrococcygeal symphysis, and (via the anococcygeal nerve) a small area of skin between the tip of the coccyx, and the anus.[1]

See also


  1. ^ a b Moore, Keith L.; Dalley, Arthur F.; Agur, Anne M. R. (2017). Essential Clinical Anatomy. Lippincott Williams & Wilkins. p. 586. ISBN 978-1496347213.
  2. ^ "Coccygeal Nerve - an overview | ScienceDirect Topics". Retrieved 2021-06-04.