Pudendal canal

The pudendal canal (also called Alcock's canal) is an anatomical structure formed by the obturator fascia (fascia of the obturator internus muscle) lining the lateral wall of the ischioanal fossa. The internal pudendal artery and veins, and pudendal nerve pass through the pudendal canal, and the perineal nerve arises within it.^[1]

Pudendal canal
Coronal section of pelvis, showing arrangement of fasciæ. Viewed from behind. (Alcock's canal labelled at bottom right.)
Pudendal nerve and its course through the pudendal canal (labelled in yellow)
Details
Identifiers
Latin	canalis pudendalis
TA98	A09.5.04.003
TA2	2436
FMA	22071
Anatomical terminology [edit on Wikidata]

Clinical significance

Main article: Pudendal nerve entrapment

Pudendal nerve entrapment can occur when the pudendal nerve is compressed while it passes through the pudendal canal.^[2]

History

The pudendal canal is also known as Alcock's canal, named after Benjamin Alcock.^[3]

Additional images

• 
  The superficial branches of the internal pudendal artery. (Canal not labeled, but pudendal nerve and internal pudendal artery labeled at bottom right.)

See also

• Femoral canal
• Inguinal canal
• Pudendal nerve
• Obturator internus muscle

References

This article incorporates text in the public domain from page 421 of the 20th edition of Gray's Anatomy (1918)

1. "canalis pudendalis". TheFreeDictionary.com. Retrieved 2023-06-14.
2. Chiarioni, Giuseppe; Popa, Stefan-Lucian (2020-01-01), Rao, Satish S. C.; Lee, Yeong Yeh; Ghoshal, Uday C. (eds.), "Chapter 36 - Anorectal pain", Clinical and Basic Neurogastroenterology and Motility, Academic Press, pp. 505–515, doi:10.1016/b978-0-12-813037-7.00036-4, ISBN 978-0-12-813037-7, retrieved 2021-02-08
3. Standring, Susan (2016). Gray's anatomy : the anatomical basis of clinical practice (Forty-first ed.). [Philadelphia]. p. 87. ISBN 9780702052309.{{cite book}}: CS1 maint: location missing publisher (link)

External links

• Anatomy image: apmalefrontal4-16 at the College of Medicine at SUNY Upstate Medical University
• Cross section image: pelvis/pelvis-e12-15—Plastination Laboratory at the Medical University of Vienna
• Anatomy photo:41:08-0100 at the SUNY Downstate Medical Center — "The Female Perineum: Contents of the Pudendal Canal"
• Diagram at pudendal.info
• Anatomy image:9087 at the SUNY Downstate Medical Center
• Anatomy image:9448 at the SUNY Downstate Medical Center