<prompt> When extravasated urine passes from the superficial perineal space into the anterior abdominal wall, it is found immediately deep to which layer of the anterior abdominal walls?Scarpas fasciaExternal oblique muscleInternal oblique muscleTransversus abdominis muscle  <response>: The superficial perineal space is bound by Colles fascia, the fibrous portion of the superficial fascia. This layer of fascia is continuous with scarpas fascia, the fibrous portion of the superficial fascia of the anterior abdominal wall. Therefore, urine that is deep to Colles fascia will remain deep to scarpas fascia. The urine will spread in the plane between scarpa;s fascia and the external oblique layer. 