Espiral AtlasIschioanal fossa
fossa ischioanalis
Large wedge-shaped spaces, lined with fascia, on each side of the anal canal, between the skin of the anal region and the pelvic diaphragm. The apex lies above, where the levator ani arises from the obturator fascia; the base is wide below.
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Related clinical cases
- Emaciation and anal prolapse
- Ischioanal and perianal abscesses