Is perineal body same as perineal membrane?
The perineal body is the point of junction of the superficial and deep transverse perineal muscles, perineal membrane, external anal sphincter, posterior vaginal muscularis, and fibers from the puborectalis and pubococcygeus muscles.
What is the location of the urogenital diaphragm?
The urogenital diaphragm, also called the triangular ligament, is a strong, muscular membrane that occupies the area between the symphysis pubis and ischial tuberosities and stretches across the triangular anterior portion of the pelvic outlet. The urogenital diaphragm is external and inferior to the pelvic diaphragm.
What does the urogenital diaphragm attach to?
It emerges from the inner aspect of the ischial tuberosities of the pelvic girdle and extends towards the midline to attach to the perineal body. The superior and inferior fasciae of the urogenital diaphragm are continuous behind the transverse perineal muscle.
Where is the perineal body?
The perineal body (PB), also referred to as the central tendon of the perineum, is a fibro-muscular structure located in the midline of the perineum. Its exact location is the midline of the perineum at the junction of the anus and urogenital triangle in both females and males.
What is the function of the perineal body?
The perineal body is an important active support component for the pelvic organs. Its normal function is essential for the protection and placement of the pelvic organs. For example, many bodily functions increase intra-abdominal pressure, e.g., sneezing, coughing, laughing, micturition, defecation, and parturition.
Is pelvic diaphragm and urogenital diaphragm same?
The term “urogenital diaphragm” is often confused with the pelvic diaphragm (pelvic floor), which is a true diaphragm supporting many of the pelvic organs….
| Urogenital diaphragm | |
|---|---|
| Latin | Diaphragma urogenitale |
| Anatomical terminology |
Where does perineal membrane attach?
ischiopubic rami
The perineal membrane is a thin triangular horizontal layer of dense tough fascia in the perineum which divides the urogenital triangle into superficial (inferior) and deep (superior) perineal pouches. It attaches to the inferior margins of the ischiopubic rami, enclosing the anterior portion of the pelvic outlet.
Why is perineal body Important?
The perineal body is essential for the integrity of the pelvic floor, particularly in females. Its rupture during vaginal birth leads to widening of the gap between the anterior free borders of levator ani muscle of both sides, thus predisposing the woman to prolapse of the uterus, rectum, or even the urinary bladder.
What is pelvic diaphragm?
The pelvic diaphragm is a wide but thin muscular layer of tissue that forms the inferior border of the abdominopelvic cavity. Composed of a broad, funnel-shaped sling of fascia and muscle, it extends from the symphysis pubis to the coccyx and from one lateral sidewall to the other.