Body Cavities 

visceral pleura membrane on the surface of the lung visceral pericardium membrane on the surface of the heart visceral peritoneum membrane on the surface of abdominal organs parietal pleura membrane on the wall of the lung cavity parietal pericardium membrane on the wall of the heart cavity parietal peritoneum membrane on the wall of the abdominal cavity cranial cavity contains the brain spinal cavity contains the spinal cord dorsal cavity includes the cranial and spinal cavities. ventral cavity thoracic and abdominopelvic cavities thoracic cavity contains the heart and lungs abdominopelvic cavity contains both the abdominal and pelvic cavities abdominal cavity contains primarily the major organs of digestion pelvic cavity Contains urinary bladder, reproductive organs, and rectum pleural cavity contains the lungs pericardial cavity contains the heart mediastinum separates the thoracic cavity into R and L pleural cavities diaphragm separates the thoracic and abdominopelvic cavities orbital cavity nasal cavity oral cavity middle ear cavity