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Perineum. Perineum. Urogenital Triangle. Divisions. Deep perineal pouch. Perineal membrane. Superficial perineal pouch. Coronal section on urogenital. Deep perineal pouch. Boundaries: Sup & inf & 2lateral Post closed Ant closed. Deep perineal pouch. - PowerPoint PPT Presentation
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• Divisions
Coronal section on urogenital
Superficial perineal pouch
Deep perineal pouchPerineal membrane
Lateral view
Posterior view
• Boundaries:
Sup & inf & 2lateral
Post closed
Ant closed
Deep perineal pouch
Deep perineal pouch
Urogenital diaphragm• Contents in male:1. Membranous urethra
2. Sphincter urethrae
3. Deep transversus perinei
4. Bulbourethral gland
5. Internal pudendal vessels
6. Vessels of the bulb
7. Dorsal nerve of penis
• Contents in female:1. Vagina
2. Urethra
3. Sphincter urethrae
4. Deep transversus perinei
5. Internal pudendal vessels
6. Vessels of the bulb
7. Dorsal nerve of clitoris
• Post. division of perineum
• Boundaries
• Contents:
a) anal canal
b) ischiorectal fossa
Isch. F
• Wedge-shaped
• Fascial lined space on each side of the anal canal
• Filled with fat to accommodate the dilatation of anal canal during defecation
• Boundaries:
Inf. (base) Skin of perineum lateral to anal canal
Sup. (edge) white line
• Boundaries:
Medial levator ani muscle & fascia & external anal sphincter
Lateral obturator int. Muscle & fascia
• Boundaries:Ant. Superf. And deep transversus perinei separated by perineal membrane
Post. Sacrotuberous lig & gluteus maximus
• Contents:
Fat
Inferior rectal vessels& nerves
• Contents:
• Contents:
Transvers perineal vesselsInferior rectal vessels& nerves
• Contents:
Perineal branch of 4th sacral nerve
• Contents:
Scrotal (labial) nerves &vessels