system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Into which structure does hemorrhage occur after injury to the inferior rectal vessels?
assistant
The correct answer is  Hemorrhage occur after injury to the inferior rectal vessels in ischiorectal fossa. The ischiorectal fossa lies in the anal triangle and is bound laterally by the obturator internus with its fascia and superomedially by the levator ani and external anal sphincter. It contains the inferior rectal vessels. Thus, haemorrhage occurs in the ischiorectal fossa when it is ruptured.