What does the superficial Transversus perinei do?
The paired superficial transverse perineal muscles (TA: musculus transversus superficialis perinei) lie in the perineum and are important for stabilizing the perineal body.
What is the urogenital triangle?
The urogenital triangle is the anterior half of the perineum. It is bounded by the pubic symphysis, ischiopubic rami, and a theorectical line between the two ischial tuberosities. The triangle is associated with the structures of the urogenital system – the external genitalia and urethra.
What are the contents of the male urogenital triangle?
The urogenital triangle differs between males and females. In males, it contains male external genitalia and the perineal muscles. Let’s start with the male external genitalia, which includes the membranous – or intermediate – urethra, the spongy urethra, the scrotum, and the penis.
What does the Ischiocavernosus muscle do?
By compressing the penis against the ischium, the ischiocavernosus muscles assist in producing and maintaining erection by impeding venous return from the CCP.
What is the superficial transverse perinei?
The superficial transverse perineal muscle (transversus superficialis perinei) is a narrow muscular slip, which passes more or less transversely across the perineal space in front of the anus.
What Innervates the superficial transverse perineal?
The muscular branches innervate the superficial transverse of the perineum, the bulbocavernosus, the ischiocavernosus, the deep transverse muscle of the perineum, the sphincter of the urethra and the anterior portion of the external anal sphincter and the levator anis muscle.
What is a perineum in a female?
The female perineum is a diamond-shaped structure inferior to the pelvic diaphragm and between the symphysis pubis and coccyx. The perineum is divided into the anterior urogenital triangle and the pos- terior anal triangle; the vulva represents the external genitalia.
What is the female triangle?
The female urogenital triangle contains the mons pubis, labia majora and labia minora, the clitoris, and the vaginal and urethral orifices. The perineal body is attached to the vaginal introitus, as well as the posterior commissure labia majora.
What are the layers of the urogenital triangle *?
Where is perineum on female?
What is the origin of Coccygeus muscle?
Its origin is the tip of the ischial spine, adjacent to the posterior margin of the obturator internus and the pelvic surface of the sacrospinous ligament. Its fibers fan out to insert into the lateral margin of the coccyx and the lowest piece of the sacrum. It lies adjacent to the lower border of the piriformis.
What is the Coccygeus?
Coccygeus also known as ischiococcygeus is a triangular-shaped sheet of muscle located posterior to the levator ani muscles in the pelvic floor. The coccygeus, together with the levator ani, forms the pelvic diaphragm.
What is the superficial transverse perineal muscle?
The superficial transverse perineal muscle ( transversus superficialis perinei) is a narrow muscular slip, which passes more or less transversely across the perineal space in front of the anus.
Where is the transversus perinei profundus?
The deep transverse perineal muscle (transversus perinei profundus) lies in the perineum, a part of the pelvic floor. It arises from the inferior rami of the ischium and runs to the median plane, where it interlaces in a tendinous raphe with the other deep transverse perineal muscle of the opposite side.
What is the perineal muscular system?
The paired superficial transverse perineal muscles ( TA: musculus transversus superficialis perinei) lie in the perineum and are important for stabilizing the perineal body. insertion: the fibers of each muscle meet in the midline at the perineal body and decussate to intertwine with their contralateral superficial transverse perineal muscle 2,3
Where does the perineal sphincter originate?
It arises by tendinous fibers from the inner and forepart of the ischial tuberosity and, running medially, is inserted into the central tendinous point of the perineum (perineal body), joining in this situation with the muscle of the opposite side, with the external anal sphincter muscle behind, and with the bulbospongiosus muscle in front.