Nerve to the Piriformis

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
Dorlands /Elsevier	n_05/12566208
TA	A14.2.07.029
FMA	16509
Anatomical terms of neuroanatomy []

The nerve to piriformis is the peripheral nerve that innervates the piriformis muscle.

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).

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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