PC muscle

PC muscle

A sling-like muscle, of the levator ani group of muscles, which extends from the pubic bone to the coccyx, forming the floor of the pelvic cavity and supporting the pelvic organs.
Action
Controls urinary flow and contracts during orgasm.
 
Nerve
S3, S4 of the sacral plexus.
Origin
Posterior pubis and anterior part of obturator fascia.
Insertion
Coccyx and sacrum.