Ischiorectal fossa
Theperineum. The integument and superficial layer ofsuperficial fascia reflected. (Ischiorectal fossa labeled at bottom left.)
The posterior aspect of the rectum exposed by removing the lower part of the sacrum and the coccyx (ischiorectal fossa labeled at bottom right)
Details
Identifiers
Latin	fossa ischioanalis
TA98	A09.5.04.001
TA2	2446
FMA	22059
Anatomical terminology [edit on Wikidata]

Theischioanal fossa (formerly calledischiorectal fossa) is the fat-filled wedge-shaped space located lateral to the anal canal and inferior to thepelvic diaphragm. It is somewhat prismatic in shape, with its base directed to the surface of theperineum and its apex at the line of meeting of theobturator andanal fasciae.

It has the following boundaries:^[1]

The contents include:

• InsideAlcock's canal, on the lateral wall
  • internal pudendal artery
  • internal pudendal vein
  • pudendal nerve
• Outside Alcock's canal, crossing the space transversely
  • inferior rectal artery
  • inferior rectal veins
  • inferior anal nerves
  • fatty tissue across which numerous fibrous bands extend from side to side allows distension of the anal canal during defecation

• Anal triangle

This article incorporates text in thepublic domain frompage 425 of the 20th edition ofGray's Anatomy(1918)

• 
  Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front.
• 
  The superficial branches of the internal pudendal artery.

• Anatomy image: apmalefrontal4-8 at the College of Medicine at SUNY Upstate Medical University
• Anatomy photo:41:04-0103 at the SUNY Downstate Medical Center - "The Female Perineum: The Ischioanal Fossa"
• Anatomy image:9246 at the SUNY Downstate Medical Center
• Cross section image: pelvis/pelvis-e12-15—Plastination Laboratory at the Medical University of Vienna
• perineum at The Anatomy Lesson by Wesley Norman (Georgetown University) (analtriangle2,femaleugtrianglesectionfascia)
• Diagram atEmory University

• Perineum

• Articles with short description
• Short description with empty Wikidata description
• Wikipedia articles incorporating text from the 20th edition of Gray's Anatomy (1918)