This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
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 
Select and explain. 
A. Scarpa's fascia, B. External oblique muscle, C. Internal oblique muscle, D. Transversus abdominis muscle
A: Scarpa's fascia
Answer: A: Scarpa's fascia 
Explanation: The superficial perineal space is bound by Colle's fascia, the fibrous poion of the superficial fascia. This layer of fascia is continuous with Scarpa&;s fascia, the fibrous poion of the superficial fascia of the anterior abdominal wall. Therefore, urine that is deep to Colle's fascia will remain deep to Scarpa&;s fascia. The urine will spread in the plane between Scarpa&;s fascia and the external oblique layer.