ANATOMY, TRUNK. ANATOMY, TRUNK Model of the internal anatomy of the trunk of an adult human body of indeterminate sex, anterior view. With the heart removed, the esophagus, (tan) visible in the thorax between the lungs, protrudes into the abdominal cavity, where the deep organs can be seen here thanks to the removal of both the digestive system (liver, gallblader, stomach, pancreas, intestines) and the reproductive organs. A portion of the rectum (brown) appears in frontal section under the