Abdominal Anatomy / Intra Abdominal Organs Radiology Case Radiopaedia Org / The abdominal cavity is the part of the body that houses the stomach, liver, pancreas, kidneys, gallbladder, spleen, and the large and small intestines.the diaphragm marks the top of the abdomen and the horizontal line at the level of the top of the pelvis marks the bottom. Admin – August 11, 2021