<prompt> Perineal muscles include all exceptIschiocavernosusPuborectalisBulbospongiosusTransverse perineii  <response>: It functions as a point of attachment for muscle fibres from the pelvic floor and the perineum itself: Levator ani pa of the pelvic floor. Bulbospongiosus muscle. Superficial and deep transverse perineal muscles. External anal sphincter muscle. External urethral sphincter muscle fibres. ref - BDC 6e vol2 pg350 