In the ilioanal fossa below the levator ani, the pudendal nerve has three branches: the inferior rectal branch, the perineal branch, and the dorsal nerve of the penis (blue arrow).
The entry of the pudendal nerve in the ilioanal fossa (red arrow) deep to the sacrotuberous ligament (red asterix). The inferior rectal branch (yellow arrow), the perineal branch (cyan arrow), and the dorsal nerve of the penis.
