Everything about Urogenital Diaphragm totally explained
The
deep perineal pouch (also
deep perineal space) is an anatomical term that refers to the space enclosed in part by the
perineum, and located superior to the
perineal membrane.
Structure
Unlike the
superficial perineal pouch, the deep perineal pouch lacks a superior border. It extends up into the
pelvis.
Contents
The deep perineal pouch contains:
"Urogenital diaphragm"
Older texts have asserted the existence of an "urogenital diaphragm", which was described as a layer of the
pelvis that separates the
deep perineal sac from the upper pelvis, lying between the
inferior fascia of the urogenital diaphragm and
superior fascia of the urogenital diaphragm.
While this term is used to refer to a layer of the pelvis that separates the
deep perineal sac from the upper pelvis, such a discrete border of the sac probably doesn't exist.
While it has no official entry in
Terminologia Anatomica, the term is still used occasionally to describe the muscular components of the deep perineal pouch The urethra and the vagina, though part of the pouch, are usually said to be passing through the urogenital diaphragm, rather than part of the diaphragm itself.
Some researchers still assert that such a diaphragm exists, and the term is still used in the literature.
The term "urogenital diaphragm" is often confused with the
pelvic floor, which is a true diaphragm supporting many of the pelvic organs.
In our school we operate with these terms:
The perineum actually is the pelvic exit, closed by the pelvic and urogenital diaphragms.
The pelvic diaphragm divides the minor pelvic cavity (true pelvis) into two compertments. They are the
1 Superior compartment, containing the pelvic viscera, and
2 The inferior compartment called ischiorectal fossa.
The urogenital diaphragm closes the anterior part of the ischiorectal fossa, leaving the fossa open posteriorly.
The urogenital diaphragm is made of 2(paired)muscles. the deep and superficial transverse perineal muscles. These two muscles join in front of the rectum, and form the perineal body.
Deep transverse perineal muscle: originates from the inferior pubic ramus snd the ramus of ischium. Runs medially and fuse in the midline. This muscle is interrupted once in male and twice in female, by the urethra and the vagina passing through it.
Around the urethra, the deep transverse perineal muscle forms a separate, ringlike valve, the sphincter urethrae in male, and a similar urethrovaginal sphincter in female.
This muscle doesn't attach to the symphysis. As a result, we can see a space between it, and the symphysis called as the retropubic space. Through this space exits the dorsal and deep arteries of penis/clitoris.
Superficial transverse perineal muscle: this muscle is a narrow bundle of skeletal muscle. Extend at the posterior border of the deep transverse perineal muscle, and insert on the perineal body.
The fascia of the urogenital diaphragm, the superficial and deep perineal fascia, lines both muscles.
The superficial perineal fascia is lining the inferior surface of the urogenital diaphragm; meanwhile the deep fascia overlies the superior surface of the same diaphragm.
Additional images
Image:male anatomy.png |Male Anatomy
Image:Gray403.png|Median sagittal section of pelvis, showing arrangement of fasciæ.
Image:Gray543.png |The deeper branches of the internal pudendal artery.
Further Information
Get more info on 'Urogenital Diaphragm'.
|
External Link Exchanges
Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:
<a href="http://deep_perineal_pouch.totallyexplained.com">Deep perineal pouch Totally Explained</a>
Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned. |
