Inferior anal nerves
5438619
211525408
2008-05-10T20:29:42Z
Theresa knott
8257
Reverted edits by [[Special:Contributions/88.78.210.240|88.78.210.240]] ([[User talk:88.78.210.240|talk]]) to last version by Mikael Häggström
{{Infobox Nerve |
Name = {{PAGENAME}} |
Latin = nervi anales inferiores, nervi rectales inferiores, nervus haemorrhoidalis inferior |
GraySubject = 213 |
GrayPage = 968 |
Image = Gray542.png |
Caption = The superficial branches of the internal pudendal artery. (Inferior anal nerves visible but not labeled.) |
Image2 = Pudendal nerve.svg |
Caption2 = [[Pudendal nerve]], its course through the lesser sciatic foramen, and branches, including inferior anal at bottom right. |
Innervates = [[Rectum]] |
BranchFrom = |
BranchTo = |
MeshName = |
MeshNumber = |
DorlandsPre = n_05 |
DorlandsSuf = 12565191 |
}}
The '''Inferior rectal nerves''' ('''inferior anal nerves''', '''inferior hemorrhoidal nerve''') usually branch from the [[pudendal nerve]] but occasionally arises directly from the [[sacral plexus]]; they cross the [[ischiorectal fossa]] along with the [[inferior hemorrhoidal]] vessels, toward the [[anal canal]] and the lower end of the [[rectum]], and is distributed to the [[Sphincter ani externus]] and to the integument around the anus.
Branches of this nerve communicate with the [[perineal branch]] of the [[posterior femoral cutaneous]] and with the [[posterior scrotal nerves]] at the forepart of the [[perineum]].
==See also==
* [[Inferior rectal artery]]
==Additional images==
<gallery>
Image:Gray405.png|The perineum. The integument and superficial layer of superficial fascia reflected.
Image:Gray837.png|Sacral plexus of the right side. (Hemorrhoidal branch of pudic labeled at bottom right.)
</gallery>
==External links==
* [http://cis-ps2.osu-com.okstate.edu/hector/pelvis/InferiorRectalNervetr.htm Details] at [[Oklahoma State]]
* {{SUNYAnatomyLabs|41|08|01|02}} - "The Female Perineum: Contents of the Pudendal Canal"
* {{SUNYAnatomyFigs|41|04|10}} - "Inferior view of female perineum, branches of the internal pudendal artery."
* {{NormanAnatomy|perineum}} ({{NormanAnatomyFig|analtriangle3}})
* {{DartmouthHumanAnatomy|figures/chapter_32/32-2.HTM}}
* {{DartmouthHumanAnatomy|figures/chapter_32/32-3.HTM}}
{{Gray's}}
{{neuroscience-stub}}
{{Lumbosacral plexus}}
[[Category:Nervous system]]
[[es:Nervios anales inferiores]]