The deep transverse perineal muscle is a thin, flat muscle located in the pelvic region. It runs horizontally across the perineum, which is the area between the anus and the genitals. This muscle plays a crucial role in supporting the pelvic organs and maintaining the integrity of the pelvic floor. This muscle is part of the larger group of muscles known as the pelvic floor muscles. It helps in stabilizing the urethra and vagina in females, and the urethra in males. Proper functioning of the deep transverse perineal muscle is important for urinary control and overall pelvic health.