The digestive system plays a fundamental role ensuring liquids we ingest are broken down into useful nutrients and chemicals.
The digestive tract consists of the mouth, or oral cavity, with its teeth, for grinding the food, and its tongue, which serves to knead food and mix it with saliva. Then, there is the throat, or pharynx; the esophagus; the stomach; the small intes tine, consisting of the duodenum, the jejunum, and the ileum; and the large intestine, consisting of the cecum, a closed-end sac connecting with the ileum, the ascending colon, the transverse colon, the descending colon, and the sigmoid colon, which terminates in the rectum. Glands contributing digestive juices include the salivary glands, the gastric glands in the stomach lining, the pancreas, and the liver and its adjuncts-the gallbladder and bile ducts.
Reference: The digestive system text book , Author Kara Rogers