G13 UG Triangle Dm 2008
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G13: Urogenital (UG) Triangle Syllabus - Pg. 3 ANAT 6010 Medical Gross Anatomy David A Morton 1) UG Triangle - a)Overview • Anterior half of the perineum • Contains roots of external genitalia and openings of the urogenital system A P Pelvis - Inferior view GAFS 5.32 Levator ani m./Pelvic diaphragm GAFS 5.68 UG Triangle - Boundaries GAFS 5.68 UG Triangle - Orientation UG Triangle - Orientation UG Triangle - Orientation UG Triangle - Orientation GAFS 5.37 UG Triangle - Boundaries GAFS 5.68 UG Triangle - Boundaries GAFS 5.69 UG Triangle - Boundaries GAFS 5.69 Function GAFS 5.72 P 1)1) UGUG TriangleTriangle -- b)b) VasculatureVasculature Female Male P 1)1) UGUG TriangleTriangle -- b)b) VasculatureVasculature Female Male Internal Internal P 1)1) UGUG TriangleTriangle -- b)b) VasculatureVasculature Male Internal P GAFS 5.77 P P 1)1) UGUG TriangleTriangle -- b)b) VasculatureVasculature Male Internal P 1)1) UGUG TriangleTriangle -- b)b) VasculatureVasculature Male P 1)1) UGUG TriangleTriangle -- c)c) InnervationInnervation P 1)1) UGUG TriangleTriangle -- c)c) InnervationInnervation GAFS 5.76a P 1)1) UGUG TriangleTriangle -- c)c) InnervationInnervation GAFS 5.76b P 1)1) UGUG TriangleTriangle -- c)c) InnervationInnervation P 2) Deep Perineal Space a) Boundaries Female Male P 2) Deep Perineal Space GAFS 5.35 GAFS 5.35 GAFS 5.35 2) Deep Perineal Space - Male GAFS 5.36 b) Compare/contrast conte P39 2) Deep Perineal Space - Female b) Compare/contrast conte P39 3) Superficial Perineal Pouch a) Boundaries Female Male P 3) Superficial Perineal Space GA Fema M 3) Superficial Perineal Space Female Male GAFS 5 71 3) Superficial Perineal Space - Male P Perineum (Coronal Section) - Female Membranous La of Superficial Fa In abdomen = Scarpa’s In Perineum = Colles’ GAFS 3) Superficial Perineal Space P40 P Deep Perineal Space Male Female Membranous urethra Membranous urethra Deep transverse perineal muscle Deep transverse perineal muscle Sphincter urethra muscle Sphincter urethra muscle Internal pudendal arteries Internal pudendal arteries Artery to bulb Artery to bulb Deep artery of penis Deep artery of clitoris Dorsal artery of penis Dorsal artery of clitoris Muscular branches Muscular branches Internal pudendal veins and branches Internal pudendal veins and branches Pudendal nerves and branches Pudendal ne rves and branches Bulbourethral glands and ducts ---------- ---------- Tube of the vagina P Superficial Perineal Space Male Female Roots of external genitalia Roots of external genitalia Bulb/corpus spongiosum penis* Bulb/bulbovestibuli Crus/corpora cavernosa penis** Crus/corpora cavernosa clitoris** Bulbospongiosa muscle Bulbovestibuli muscle Ischiocavernosa musc le Ischiocavernosa muscle Spongy urethra Spongy urethra Perineal nerves, arteries and veins (N, A & Perineal nerves, arteries and veins (N, A & V) V) Posterior scrotal N, A & V Posterior labial N, A & V Muscular branches Muscular branches Superfic ial transverse perineal muscle Superficial transverse perineal muscle ---------- Greater vestibular glands and ducts ---------- Tube of the vagina * Changes names distal to the suspensory ligament to corpus spongiosa penis ** Changes names distal to the suspensory ligament to corpora cavernosa penis/clitoris THANK-YOU.