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Digestive System By: Osvaldo Caldera Mouth • the mouth is the first portion of the alimentary canal that receives food and saliva.[1] The oral mucosa is the mucous membrane epithelium lining the inside of the mouth. Esophagus • The esophagus (oesophagus, commonly known as the gullet) is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the stomach. During swallowing, food passes from the mouth through the pharynx into the esophagus and travels via peristalsis to the stomach. Stomach • The stomach is a muscular, hollow, dilated part of the digestion system which functions as an important organ of the digestive tract in some animals, including vertebrates, echinoderms, insects (midgut), and molluscs. It is involved in the second phase of digestion, following mastication (chewing). Small Intestine • The small intestine (or small bowel) is the part of the gastrointestinal tract following the stomach and followed by the large intestine, and is where much of the digestion and absorption of food takes place. Liver • The liver, hepar, is a vital organ present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion. Appendix • any addition to a document, such as a book or • • • legal contract Bibliography, a systematic list of books and other works Index (publishing), a list of words or phrases with pointers to where related material can be found in a document Specifically, a text added to the end of a book or an article, containing information that is important to, but is not the main idea of, the main text Pancreas • The pancreas is a glandular organ in the digestive system and endocrine system of vertebrates. It is both an endocrine gland producing several important hormones, including insulin, glucagon, somatostatin, and pancreatic polypeptide, and a digestive organ, secreting pancreatic juice containing digestive enzymes that assist the absorption of nutrients and the digestion in the small intestine. Gall Bladder • In vertebrates the gallbladder (cholecyst, gall bladder, biliary vesicle) is a small organ that aids mainly in fat digestion and concentrates bile produced by the liver. In humans, the loss of the gallbladder is, in most cases, easily tolerated. The surgical removal of the gallbladder is called a cholecystectomy. Enzymes • Enzymes is use of natural catalysts in organic. Bile/Bile Duct Mucus Chemical Digestion Absorption Mechanical Digestion Salivary Amylase Villi Gastric Juices Duodenum Chyme