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Anatomy and Embryology (3)

Anatomy and Embryology (3). 부산백병원 산부인과 조인호. Urogenital Triangle. Vulva Superficial Perineal Compartment Deep Perineal Compartment Perineal body Anal Triangle. Vulva. Mons Pubis Labia Majora Labia Minora Clitoris Vaginal Orifice Urethral Orifice. Superficial Perineal Compartment.

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Anatomy and Embryology (3)

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  1. Anatomy and Embryology (3) 부산백병원 산부인과 조인호

  2. Urogenital Triangle • Vulva • Superficial Perineal Compartment • Deep Perineal Compartment • Perineal body • Anal Triangle

  3. Vulva • Mons Pubis • Labia Majora • Labia Minora • Clitoris • Vaginal Orifice • Urethral Orifice

  4. Superficial Perineal Compartment • superficial perineal fascia와 inferior fascia 사이에 위치 • Camper fascia (superficial), Colles fascia (deep) <- Scarpa fascia • Erectile Bodies • Vestibular bulb, clitoris • Muscles • Ischiocavernosus • Bulbocavernosus • Superficial transverse perineal • Vestibular Glands

  5. Deep Perineal Compartment • Inf. : Perineal membrane (inf. fascia of urogenital diaphragm) • Sup. : deep fascial layer • Urogenital diaphragm : • urogenital sphincter, deep transverse perineal m.

  6. Deep Perineal Compartment - sphincter urethrae • Ext. urethral sphincter • Compresser urethrae • Urethrovaginal sphincter

  7. Deep Perineal Compartment-suspension • Upper vagina & Cx. • cardinal and uterosacral lig.-> endopelvic fascia • Midvagina • Arcus tendineus fascia pelvis (ant.) • Arcus tendineus levator ani (post.) • Distal ant. vagina & urethra • Urogenital diaphragm • Distal post. vagina • Perineal body

  8. Deep Perineal Compartment -blood supply, innervation • Blood supply • Vulva • Ext. & int. pudendal a. • Venous drainage – int. pudendal v. • Deep perineal compartments • Int. pudendal a., dorsal a. of the clitoris • Venous drainage – int. pudendal v. • Lymphatic drainage – int. iliac chain • Innervation • Ilioinguinal n , Genitofemoral n. , Lat. femoral cutaneuous n. of thigh, perineal n.

  9. Perineal Body • Triangle-shaped structure • Convergence of the tendinous attachments • Anchoring role in the musculofascial support of the pelvic floor

  10. Anal Triangle • Lower end of the anal canal, ext. anal sphincter • Lat. : ischiorectal fossa • Post. Anococcygeal body • Blood Supply : inf. rectal a. & v. • Innervation : S4 n. & inf. rectal (hemorrhoidal) n.

  11. Retroperitoneum and Retroperitoneal Spaces • Prevesical Space • Paravesical Space • Vesicovaginal space • Rectovaginal Space • Pararectal Space • Retrorectal Space • Presacral Space

  12. Prevesical Space • Retzius space • Fat – filled potential space

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