What are 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.
What muscles are in the superficial perineal space?
Although they have different functions in males and females, the ischiocavernosus, bulbospongiosus, and the transverse perineal muscle are present in the superficial perineal space in both sexes along with the branches of the internal pudendal vessels and nerves.
What does the deep perineal muscles include?
The deep perineal pouch is in the urogenital triangle of the perineum below the pelvic diaphragm. It presents as a triangular, trilaminar space with sphincter urethrae [external urethral sphincter], deep transverse perineal, and compressor urethrae [in females].
Is the deep transverse perineal muscle smooth muscle?
The plate‐like structure, called the “deep transverse perineal muscle,” is located between the rectum and urethra caudal to the “rectourethral muscle” (see below), crosses the midline, and spreads bilaterally to the ischiopubic rami. Its smooth muscle fibers run transversely and are densely packed.
What is the perineal area on a male?
The perineum protects the pelvic floor muscles and the blood vessels that supply the genitals and urinary tract. The perineum also protects the nerves used to urinate or have an erection. In males, the perineum is the area between the anus and the scrotum.
What are the 2 divisions of the perineum?
C Perineum and Perineal Body The perineum can be divided into two triangular portions by the line between the ischial tuberosities. The anterior portion is called the urogenital triangle and contains the vaginal and urethral outlets. The posterior portion is known as the anal triangle and contains the anal canal.
Which structure is located in deep perineal space?
The deep perineal pouch (also deep perineal space) is the anatomic space enclosed in part by the perineum, and located superior to the perineal membrane….
| Deep perineal pouch | |
|---|---|
| Vein | branches of internal pudendal veins |
| Nerve | branches of perineal nerve |
| Identifiers | |
| Latin | saccus profundus perinei or spatium perinei profundum |
What does the transverse perineal muscle 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 are the similarities and differences between the male and female perineum?
Its exact location is the midline of the perineum at the junction of the anus and urogenital triangle in both females and males. In males, it is located between the anus and bulb of the penis, whereas in females it is found between the anus and the posterior limit of the vulvar orifice.
Why does my perineum hurt when I pee?
Perineum pain can occur because of a malfunction of your pelvic nerves. Your body tells you that you need to urinate all day and night even though your bladder is not full. Pudendal nerve entrapment — This is nerve damage in your pelvis. Surrounding muscle or tissue compresses the nerve, causing pain.
What is the order of the pelvic layers at the base of the pelvis from superficial to deep?
The superficial pelvic floor or urogenital diaphragm includes the bulbocavernosus, ischiocavernosus, and transverse perinei. The deep pelvic floor or levator ani includes the puborectalis, pubococcygeus, iliococcygeus, and coccygeus (Fig. 30–1).
What separates deep and superficial perineal pouch?
its inferior border is the fascia of Colles, the deeper membranous layer of the superficial perineal fascia that covers the inferior border of the muscles of the superficial perineal pouch. (The fascia of perineum is a deep fascia that covers the superficial perineal muscles individually).
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.
What does the deep transverse perinei attach to?
Deep transverse perinei: has several attachments in the deep perineal pouch. As it spans the space in a transverse manner (albeit, incompletely), the muscle attaches to the perineal body posteriorly and the ischiopubic rami laterally.
What are perineal lateral smooth muscles (PSMS)?
It is known to be the tissue through which a vein and the cavernous nerve pass. The perineal lateral smooth muscles (PSMs): Covered by the skin, these are the lateral aspect of the perineal body. They receive the LAM bundles that continue anteriorly to the vestibular area of the superficial perineal fascia. [11] Surgical Considerations
What are the muscles attached to the perineal body?
Several muscles form and are attached to the perineal body: The superficial transverse muscle of the perineum: it is a thin muscular lamina, even, stretched transversely in the anterior region of the perineum, below the superficial perineal fascia.