The urogenital diaphragm (perineal membrane) is pierced by which structure in the male?
- A Membranous urethra ✓
- B Penile urethra
- C Prostatic urethra
- D Ejaculatory ducts
Correct answer: A. Membranous urethra
Explanation
The perineal membrane (formerly the inferior layer of the urogenital diaphragm) spans the urogenital triangle and is pierced by the membranous urethra in males and the urethra and vagina in females. The membranous urethra is the shortest and least distensible segment, passing through the external urethral sphincter and the perineal membrane. Pelvic fractures can lacerate the membranous urethra at this fixed point.
Reference: BD Chaurasia's Human Anatomy, 8th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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