Puboperinealis muscle

Origin: pubis

Insertion: perineal body

Nerve: Levator ani nerve (S4) - inferior rectal nerve from pudendal nerve (S3, S4) - coccygeal plexus

Action: Tonic activity pulls perineal body ventrally toward pubis

The puboperineal muscle (pubourethralis; levator urethrae) is a component of the levator ani muscle group, specifically the most anteromedial part. This muscle plays a significant role in urinary continence, particularly in males, by flanking the urethra as it courses from the pubis to its insertion in the perineal body.