Pubococcygeus - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The pubococcygeus is a muscle of the pelvic floor. It forms the intemediate part of the levator ani muscle complex. Attachments: Originates from the posterior surface of the pubis. It blends with the contralateral muscle in the midline of the pelvic floor. Actions: Stability and support of abdominal and pelvic organs. Innervation: Nerve to levator ani and branches of the 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 Frequent questions What is the pubococcygeus muscle? The pubococcygeus is a pelvic floor muscle that plays a crucial role in forming the intermediate section of the levator ani muscle complex. It is essential for providing stability and support to the abdominal and pelvic organs. Where does the pubococcygeus muscle originate? The pubococcygeus muscle originates from the posterior surface of the pubis. It also connects with the opposite muscle at the midline of the pelvic floor, contributing to its overall function. What are the main functions of the pubococcygeus? The primary functions of the pubococcygeus include stabilising and supporting the abdominal and pelvic organs. This muscle is vital for maintaining proper pelvic floor integrity. Which nerves innervate the pubococcygeus muscle? The pubococcygeus muscle is innervated by the nerve to levator ani and branches of the pudendal nerve. This innervation is important for muscle contraction and pelvic floor function. What is the blood supply for the pubococcygeus muscle? The blood supply to the pubococcygeus muscle comes from the inferior gluteal, inferior vesical, and pudendal arteries. Adequate blood flow is necessary for muscle health and function. Rate This Article