Coccygeal plexus
The coccygeal plexus is a small nervous plexus upon the pelvic (anterior) surface of the coccygeus muscle.[1]
| Coccygeal plexus | |
|---|---|
 Plan of sacral and pudendal plexuses. | |
| Details | |
| From | S4-S5, coccygeal nerve |
| To | anococcygeal nerve |
| Identifiers | |
| Latin | plexus coccygeus |
| TA98 | A14.2.07.044 |
| TA2 | 6598 |
| FMA | 45356 |
| Anatomical terms of neuroanatomy | |
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]
References
- Moore, Keith L.; Dalley, Arthur F.; Agur, Anne M. R. (2017). Essential Clinical Anatomy. Lippincott Williams & Wilkins. p. 586. ISBN 978-1496347213.
- "Coccygeal Nerve - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2021-06-04.
External links
- Description at uams.edu
- Coccyx pain (tailbone pain, coccydynia) (Peer-reviewed medical chapter, available free online at eMedicine)
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