This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
NOT a content of Deep perineal pouch among the following is 
Select and explain. 
A. External urethral sphincter, B. Prostatic urethra, C. Bulbourethral gland, D. Deep transverse perineal muscle
B: Prostatic urethra
Answer: B: Prostatic urethra 
Explanation: Membranous urethra is a content of Deep perineal pouch, not prostatic urethra.