Structures

  • Deep transverse perineal
  • External urethral sphincter
  • Bladder + urethra (for orientation)

Please note: this model is anatomically incorrect and is the female version of the deep perineal pouch. We are working hard to bring you a male version.

MuscleActionOriginInsertionInnervationBlood supply
External urethral sphincter- Compresses the membranous urethra
- Relaxes during micturition
- Inferior ramus of the pubis on each side
- Adjacent walls of deep perineal pouch
- Surrounds membranous urethra- Perineal branches of the pudendal nerve: S2-S4- Internal pudendal artery
Deep transverse perineal- Stabilises the perineal body- Medial ischial ramus- Perineal body- Perineal branches of the pudendal nerve: S2-S4- Internal pudendal artery