Pubococcygeus

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 1
Superior (bird’s eye) view of the pelvic floor. Note the prerectal fibres of the puborectalis.