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A&P Body Cavities
| Term | Definition |
|---|---|
| dorsal cavity | located on the posterior side of the body (contains cranial and vertebral cavity) |
| ventral cavity | located on the anterior side of the body (contains thoracic and abdominopelvic cavity) |
| cranial cavity | contains the brain |
| vertebral cavity | contains the spinal cord |
| thoracic cavity | upper torso, contains the heart, lungs, and major vessels |
| mediastinum | area between the lungs |
| inferior mediastinum | contains the heart and surrounding pericardia |
| superior mediastinum | contains major blood vessels and thymus gland |
| diaphragm | what separates the thoracic cavity from the abdominopelvic cavity |
| superior abdominal cavity | contains the stomach, liver, gallbladder, pancreas, small intestine, kidneys, and part of the large intestine |
| pelvic cavity | contains the reproductive organs, the urinary bladder, and part of the large intestine |
| serous membranes | -outer (parietal) layer that attaches to the cavity -inner (visceral) layer that adheres to an organ -lines the inside walls of the ventral cavities and cover most of the internal and visceral organs |
| pleura | serous membranes associated with the lungs |
| parietal pleura | lines thoracic cavity |
| visceral pleura | covers the lungs |
| pleural cavity | separates the parietal pleura and visceral pleura, contains fluid to help reduce friction |
| visceral pericardium | covers the heart |
| pericardial cavity | separates the visceral and parietal cavity |
| parietal pericardium | lines the fiberous pericardium within the inferior mediastinum |
| parietal peritoneum | lines the abdominopelvic cavity |
| visceral peritoneum | covers most organs in abdominopelvic cavity |
| peritoneal cavity | thin space between the visceral peritoneum and parietal peritoneum |
| retroperitoneal | organs not surrounded by peritoneal membrane |