2. UG Diaphragm
Terms
undefined, object
copy deck
- What 2 triangles make up the perineum?
-
-Ischioanal (A)
-Urogenital (UG) - What does the UG diaphragm do?
- Fills a defect in the Pelvic Diaphragm - where muscles go around outlets.
- What is the UG Diaphragm composed of?
-
Muscle / 2 layers of fascia:
-Inferior (Perineal membrane)
-Superior - What spaces are created by the UG Diaphragm fascial layers?
-
1. DEEP pouch (above perineal membrane
2. SUPERFICIAL pouch (below perineal membrane) - What is the DEFINITION of the UG diaphragm?
- "A thin sheet of striated muscle stretching between the 2 sides of the pubic arch"
- What muscles are in the UG Diaphragm?
-
1. Deep transverse perineii
2. Sphincter urethrae - What passes thru the UG Diaphragm?
-
-Urethra
-Vagina (females)
NOT THE RECTUM - Where is the superficial pouch?
- Below the inferior fascia / perineal membrane.
- What muscles are in the superficial pouch?
-
-Ischiocavernosus
-Bulbospongiosus - What is important to remember about the INFERIOR fascia of the UG Diaphragm?
- It is continuous with the deep layer of fascia - anteriorly and posteriorly
- What fascia layer lies superficial to the Perineal / Inferior fascia of UG Diaph?
- Superficial perineal fascia
- What is the Superficial perineal fascia continuous with?
- Colle's fascia
- What is the Superficial perineal Colles' fascia attachd to? (3 things)
-
1. Fascia lata of thigh
2. Pubic arch
3. Base of inferior fascia - What is "Dartos" Fascia?
- Just superficial/colles' fascia, thrown over the penis and scrotum to cover testes/spermatic cords.
- 7 things in MALE superficial pouch:
-
1. Penis root
2. Proximal spongy urethra
3. IPA branches
4. Pudendal nerves
5. Superficial transverse perineii
6. Ischiocavernosus m.
7. Bulbospongiosus m. - 4 things in FEMALE superficial pouch:
-
1. Superficial transverse perineii m.
2. Ischiocavernosus m
3. Bulbocavernosus m
4. Greater vestibular bulb and 2 glands - What is significant about the greater vestibular bulb in females?
- It is highly vascularized and subject to straddle injury
- 4 things in MALE deep pouch:
-
1. Membranous urethra
2. Sphincter urethra
3. Cowper's glands
4. Deep transverse perineii m. - 4 things in FEMALE deep pouch:
-
1. Urethra
2. Sphincter urethral muscle
3. Inferior vagina
4. Deep transverse perineii m.