Which cavity contains the urinary bladder?

• A. Abdominal
• B. Pelvic
• C. Thoracic
• D. Cranial

Answer: (B)

The urinary bladder sits in the pelvic cavity. This lower subdivision of the ventral body cavity is bounded by the pelvic bones and houses the bladder and parts of the urinary and reproductive systems. While the bladder can expand upward into the abdominal cavity as it fills, its primary location is within the pelvic cavity. In contrast, the thoracic cavity contains the heart and lungs, the cranial cavity houses the brain, and the abdominal cavity contains most digestive organs; those are not the primary homes of the bladder.