Re: Perineum

Comments:
: : Perineum : : 1. Define the parts of the external aspects of the penis. Include a x-section in your answer. : : 2. Describe the external genitalia of the female. : I basically drew the ones Dr. Zagon drew for us in class : : : 3. Define the perineum. : - inferior to the floor of pelvic cavity/UG diaphragm : - b/w pubic symphysis & coccyx : - diamond shaped : : 4. Describe the urogenital triangle as to structures - superficial to deep. : Drew these : : 5. What is the Urogenital diaphragm? : "nothing more than the deep transverse perineus m. and the sphincter urethra m." direct quote from the lecture : : 6. What is the inferior fascia (perineal membrane) of the U.G. diaphragm? : it's the superior border of the superificial pouch and the inferior border of the deep perineal pouch. parietal pevlic fascia which is an extension of the transversalis fascia : : 7. What is the arcuate ligament? : - aka inferior pubic ligament : - connects the 2 pubic bones below : - upper boundary of the pubic arch : : 8. What is the transverse perineal ligament? How does this ligament relate to the superior and inferior fascia of the U.G. diaphragm? : - it's basically the thickened fascia over the ant. border of the UG diaphragm : - this ligament is inferior (and the arcuate ligament is superior) to the deep dorsal v and dorsal a's, n's of penis : : 9. Where are the bulbourethral glands? Where do they terminate? : - only in males : - they pass through the inf. fascia of the UGD and opens into the urethra at the bulb of penis : : 10. What is the course of the deep dorsal vein of the penis/clitoris? : - blood from corpus cavernosum -> venous plexus -> deep dorsal vein of penis (superficial to tunica albigenea & deep to Buck's fascia) -> passes superficial to transverse perineal lig & deep to arcuate ligament : : 11. What is the perineal body (central tendon)? : where these guys meet: : - bulbospongiosus : - external anal sphincter : - superficial & deep transverse perineal m. : : 12. What is the ischiorectal fossa? : : 13. What is the anterior recess of the ischiorectal fossa? : : 14. What is the posterior recess of the ischiorectal fossa? : just read the answers to the essay question about ischiorectal fossa, which showed up almost every other year : : 15. What are the contents of the superficial pouch? : erectile tissues & muscles : - bulb of penis/vestivule & bulbospongiosus : - crus of penis/clitoris & ischiocavernosus : : 16. What are the contents of the deep pouch? : external sphincter urethra, deep transverse perineus m, bulbourethral glands : : 17. Compare the glans of the penis to the glans of the clitoris in terms of the origin of the erectile tissue. : root of penis = 2 crura + bulb of penis : root of clitoris = only the 2 crura, NOT the bulb of vestibule. this is according to student gray's : : 18. What is the bulb of the vestibule? : it's an erectile structure, homologous of the bulb of penis. it's a paired, present on each side, covered by bulbospongiosus : : 19. The bulbourethral glands have homology with the greater vestibular glands. Compare these glands in location. : - bulbourethral glands = within the deep pouch : - greater vestibular glands = out of vagina, deep to the bulbs, superior to the perinal membrane : : 20. What is the superior fascia and inferior fascia of the pelvic diaphragm. : superior fascia is basically the suprior fascia of the pelvic diaphragm. no. just kidding. : according to m00t point, the suprior fascia is continuous with the fascia of obturator internus, which is the parietal pelvic fascia, which is an extension of the transversalis fascia : also according to m00t point, the inferior fascia is also parietal pelvic fascia which is an extension of the transversalis fascia. basically, they're all extensions of the transversalis fascia

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