The puborectalis is a muscle of the pelvic floor. It is part of the levator ani muscle group, and the most important for maintaining faecal continence. Attachments: Originates from the posterior surface of the pubis. It forms a U-shaped sling around the anal canal, and attaches to the pubis on the contralateral side. Actions: onic contraction bends the anal canal anteriorly. This creates the anorectal angle which contributes to faecal continence. It is voluntarily inhibited during defecation. Innervation: Nerve to levator ani and pudendal nerve. Blood supply: Inferior gluteal, inferior vesical and pudendal arteries. Adapted from work by OpenStax [CC BY 4.0], via Wikimedia Commons Fig 1Superior (bird’s eye) view of the pelvic floor. Note the prerectal fibres of the puborectalis. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Print Article Rate This Article