Piriformis nerve

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Piriformis nerve
Gray828.png
Plan of sacral plexus and pudendal plexus. (Label "to piriformis" is at center left.)
Posterior Hip Muscles 1.PNG
The piriformis and nearby muscles
Details
Latin Nervus musculi piriformis
Innervates piriformis muscle
From
sacral plexus (S1–S2)
Identifiers
Gray's p.957
Dorlands
/Elsevier
n_05/12566208
TA A14.2.07.029
FMA FMA:16509
Anatomical terms of neuroanatomy

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

Course[edit]

The nerve to piriformis originates in the sacral plexus. It arises from the ventral division of the second sacral nerve, or the ventral divisions of the first and second sacral nerves (S1 & S2), and enters the anterior surface of the piriformis muscle; this nerve may be double. Not to get confused by the inferior gluteal nerve which is also (S1 and S2).

See also[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.