What does the pelvic cavity primarily contain?

The pelvic cavity is primarily known for housing the urinary bladder and reproductive organs. This cavity is located below the abdominal cavity and is bounded by the pelvic bones. It plays a crucial role in the body's reproductive and urinary systems. The urinary bladder is responsible for the storage of urine before it is expelled from the body, while the reproductive organs differ between males and females but include structures such as the uterus, ovaries, and prostate.

In contrast, the other options describe structures located in different areas of the body. The esophagus and stomach are found in the thoracic and abdominal cavities, the brain and spinal cord are housed within the cranial and vertebral cavities, and the lungs and pleura reside in the thoracic cavity. Understanding the specific locations of these organs helps clarify the anatomical structure and function of the pelvic cavity.