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| Nerve: Inferior anal nerves | ||
|---|---|---|
 | ||
| The superficial branches of the internal pudendal artery. (Inferior anal nerves visible but not labeled.) | ||
 | ||
| Sacral plexus of the right side. (Hemorrhoidal branch of pudic labeled at bottom right.) | ||
| Latin | nervi anales inferiores, nervi rectales inferiores, nervus haemorrhoidalis inferior | |
| Gray's | subject #213 968 | |
| Innervates | Rectum | |
| From | ||
| To | ||
| MeSH | [1] | |
The Inferior rectal nerves (inferior anal nerves, inferior hemorrhoidal nerve) occasionally arises directly from the sacral plexus; it crosses the ischiorectal fossa, 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
External links[]
- Details at okstate.edu
- SUNY Labs 41:08-0102 - "The Female Perineum: Contents of the Pudendal Canal"
- Norman/Georgetown perineum (analtriangle3)
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 As such, some of the information contained herein may be outdated.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
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