Dissection of anal triangle and ischiorectal fossae
Course of internal pudendal artery and pudendal nerve in pudendal canal; muscles of pelvic diaphragm
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Image #173-7
Dissection of anal triangle and ischiorectal fossae
Course of internal pudendal artery and pudendal nerve in pudendal canal; muscles of pelvic diaphragm
The sacrotuberous ligament has been cut away on the left to expose the course of the internal pudendal artery and the pudendal nerve as these structures pass posterior to the ischial spine (8) to enter the pudendal canal (15). The lunate fascia has been reflected to open the entire length of the pudendal canal which extends anteriorly to the posterior border of the urogenital diaphragm. The latter is obscured by the muscles that occupy the superficial perineal space.