deep transverse perineal muscle

The deep transverse perineal muscle lies in the perineum, a part of the pelvic floor.

The deep transverse perineal muscle is innervated by the pudendal nerve.

The deep transverse perineal muscle lies in the same plane as the sphincter urethrae membranaceae and formerly the two muscles were described together as the constrictor urethrae.

The deep transverse perineal muscle arises from the inferior rami of the ischium and runs to the median line, where it interlaces in a tendinous raphe with the other deep transverse perineal muscle of the opposite side.