Coccygeal plexus
nerve plexus near the coccyx bone
The coccygeal plexus is a small nervous plexus upon the pelvic (anterior) surface of the coccygeus muscle.
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.
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.
The public source identifies “Coccygeal plexus” as nerve plexus near the coccyx bone. This brief keeps that definition visible, then builds a research path around Coccygeal, plexus and nerve.
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This entry incorporates text from “Coccygeal plexus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.