Perineal Membrane

Question 1

Perineal membrane

Answer 1

Strong fibrous triangular membrane membrane lying horizontally

Question 2

Attachments: anterior

Answer 2

1. It is thickened forming transverse perineal ligament
2. .There is gap between transverse perineal ligament and arcuate pubic ligament of symphysis pubis through which passes deep dorsal vein of penis to enter pelvis and ends into prostatic venous plexus

Question 3

Attachments: posterior

Answer 3

It fuses with Colle’s fascia superficial to it and pelvic fascia deep to it closing superficial and deep perineal pouches posterior

Question 4

Attachments: lateral

Answer 4

Pubic arches

Question 5

Relations: deep surface

Answer 5

Contents of deep perineal pouch

Question 6

Relations: superficial surface

Answer 6

Contents of superficial perineal pouch

Question 7

Structures piercing it in males

Answer 7

1. Urethra (1 inch behind symphysis pubis)
2. Ducts of the bulbo-urethral glands (on urethra sides)
3. Branches of internal pudendal artery:
   - 2 terminals: Deep artery of penis (close to pubic arch) and dorsal artery of penis (near apex)
   - Perineal artery (at base).
   - Urethral artery and artery of bulb of penis (beside urethra)
4. Posterior scrotal nerve
5. Dorsal nerve of penis (near apex)

Question 8

Structures piercing in female

Answer 8

1. Urethra (1 inch behind symphysis pubis)
2. Vagina (behind urethra)
3. Branches of internal pudendal artery:
   - 2 terminals: Deep artery of clitoris (close to pubic
   arch) and dorsal artery of clitoris (near apex)
   - Perineal artery (at base)
   - Urethral artery and artery of bulb of vestibule (beside urethra)
4. Posterior labial nerve
5. Dorsal nerve of clitoris (near apex)