Human anatomy. Photograph of the human torso (plastic model, ventral view) showing internal organs. From bottom: the colon or large intestine (green girdle), small intestines (inside the girdle), stomach (pink, at right), liver (dark red above stomach). In the chest are the lungs with the heart between them. In the neck is the internal jugular vein, the carotid artery, and the windpipe (trachea, white).