Piriformis nerve
| Piriformis nerve | |
|---|---|
 Diagram of sacral plexus and pudendal plexus. (Label "to piriformis" is at center left.) | |
 The piriformis and nearby muscles | |
| Details | |
| From | sacral plexus (S1–S2) |
| Innervates | piriformis muscle |
| Identifiers | |
| Latin | Nervus musculi piriformis |
| TA98 | A14.2.07.029 |
| TA2 | 6545 |
| FMA | 16509 |
| Anatomical terms of neuroanatomy | |
The nerve to piriformis is the peripheral nerve that innervates the piriformis muscle.
Course
The nerve to piriformis originates in the sacral plexus. It arises from the posterior division of the ventral rami of the first and second sacral nerves, and enters the anterior surface of the piriformis muscle. This nerve may be double. This nerve is not to be confused with the inferior gluteal nerve, which also arises from posterior divisions of the first and second sacral ventral rami (S1, S2).
See also
References
This article incorporates text in the public domain from page 957 of the 20th edition of Gray's Anatomy (1918)
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