Urogenital diaphragm

Coronal section of anterior part of pelvis, th...

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Urogenital diaphragm is a triangular musculo fascial diaphragm situated in the anterior part of perineum filling the gap of the pubic arch.

Components of urogenital diaphragm

  1. Deep transverse perinei muscles
  2. Sphincter urethrae
  3. Superior fascia of urogenital diaphragm
  4. Inferior fascia of urogenital diaphragm(Perineal  membrane)

Colles fascia does not form a part of urogenital diaphragm, but it is attached to the posterior border of urogenital diaphragm

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