Nerve to the Piriformis
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| Nerve: Nerve to the Piriformis | ||
|---|---|---|
 | ||
| Plan of sacral plexus and pudendal plexus. (Label "to piriformis" is at center left.) | ||
 | ||
| The piriformis and nearby muscles | ||
| Latin | nervus musculi piriformis | |
| Gray's | subject #213 957 | |
| Innervates | piriformis muscle | |
| From | sacral plexus (S1–S2) | |
| To | ||
| MeSH | [1] | |
The nerve to piriformis is a nerve that innervates the piriformis muscle.
[edit] Course
The nerve to piriformis originates in the sacral plexus. It arises from the dorsal division of the second sacral nerve, or the dorsal divisions of the first and second sacral nerves, and enters the anterior surface of the piriformis muscle; this nerve may be double.
[edit] See also
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
lumbar plexus: iliohypogastric - ilioinguinal - genitofemoral (femoral branch/lumboinguinal, genital branch) - lateral cutaneous of thigh (patellar) - obturator (anterior, cutaneous, posterior, accessory) - femoral (anterior cutaneous branches, saphenous)
sacral/coccygeal plexus: to quadratus femoris - to obturator internus - to the piriformis - superior gluteal - inferior gluteal - posterior cutaneous of thigh (inferior cluneal, perineal branches)
sciatic: tibial (medial sural cutaneous, sural, medial calcaneal, medial plantar, lateral plantar) - common fibular (lateral sural cutaneous, deep fibular, superficial fibular, medial dorsal cutaneous, intermediate dorsal cutaneous)
pudendal plexus: perforating cutaneous - pudendal (dorsal of the penis/clitoris, inferior anal, perineal and posterior scrotal/labial) - anococcygeal
| This page uses content from the English-language version of Wikipedia. The original article was at Nerve to the Piriformis. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License. |
