| 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 | |
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]