In uroabdomen, the dorsal bladder wall is the most common rupture location.

• A. Dorsal
• B. Ventral
• C. Lateral
• D. Caudal

Answer: (A)

In uroabdomen, urine enters the peritoneal cavity through a rupture in the bladder wall. The dorsal wall is the most common site because this portion lies directly beneath the peritoneum and is relatively thin and less muscularly reinforced than the ventral wall. When the bladder distends and pressure rises, the dorsal aspect gives way first, allowing urine to leak into the peritoneal cavity. The ventral and lateral walls are more protected and supported by the pelvic floor and thicker muscular tissue, making ruptures there less likely. Thus the dorsal location best explains why uroabdomen typically results from a dorsal bladder rupture.