Organs of the digestive system (Part 1) Organs of the digestive system (Part 2) Three-dimensional depiction of the various layers of the gastrointestinal tract Relationship of the peritoneal folds to each other and to organs of the digestive system, Sagittal section showing the peritoneal folds Structures of the mouth (oral cavity), Anterior view Major salivary glands, Location of salivary glands A typical tooth and surrounding structures, Sagittal section of a mandibular (lower) molar Dentitions and times of eruptions, Permanent (secondary) dentition External and internal view of the stomach, Anterior view of regions of the stomach Histology of the stomach, Layers of the stomach Relation of the pancreas to the liver, gallbladder, and duodenum, Anterior view Histology of a lobule, the functional unit of the liver, Portion of a liver lobule Anatomy of the small intestine Anatomy of large intestine, Anterior view of large intestine showing principal subdivisions Anatomy of large intestine, Frontal section of anal canal Histology of the large intestine