Ischiorectal fossa

Ischioanal fossa
The perineum. The integument and superficial layer of superficial 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
TA	A09.5.04.001
FMA	22059
Anatomical terminology []

The ischioanal fossa (formerly called ischiorectal fossa) is the fat-filled space located lateral to the anal canal and inferior to the pelvic diaphragm. It is somewhat prismatic in shape, with its base directed to the surface of the perineum, and its apex at the line of meeting of the obturator and anal fasciae.

It has the following boundaries:

INFERIOR:
* skin

The contents include:

This article incorporates text in the public domain from the 20th edition of Gray'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.