The digestive system is the group of organs that break down food in order to absorb its nutrients. Physical digestion begins in the mouth where the food is chewed and broken down into smaller pieces by the teeth. The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. The human digestive system is the means by which tissues and organs receive nutrients to function. The nutrients in food are used by the body as fuel to keep all the body systems working. Anatomy. 67. Here’s how these organs work together in your digestive system. The process of digestion has three stages. Description. The digestive system (also known as the gastrointestinal tract) is a long, continuous tube comprised of the mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, and anus. The system breaks down food, extracts nutrients from it, and converts them into energy. the digestive tract (or gastrointestinal tract) is a long twisting tube that starts at your mo The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). The digestive system is a collection of organs or cells in an organism's body that breaks down food into smaller nutrients that the body can use. Absorption of amino acids, fats and glucose occurs in the small intestine. Definition. The digestive system is a group of organs working together to break down food into tiny molecules. Thanks to the organs of the digestive tract, nutrients penetrate the bloodstream. Mouth. Helping them along the way are the pancreas, gall bladder and liver. Digestion of food is important so that we can obtain energy from our food. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. Total Cards. Subject. Level. The work of the digestive system is not only in grinding food eaten. Digestive system definition is - the bodily system concerned with the ingestion, digestion, and absorption of food and the discharge of residual wastes and consisting of the digestive tract and accessory glands (such as the salivary glands and the pancreas) that secrete digestive enzymes. Digestive System Part 3. 1.CCK is released 2. Mouth: Physical and chemical digestion. 1.septa 2• blood vessels & tributaries of pancreatic ducts 3.blind pockets (pancreatic acini) ... what ducts are open/closed: Definition. The digestive system consists of a group of organs that form a closed tube-like structure called the gastrointestinal tract (GI tract) or the alimentary canal. starts at pancreas ends at gallbladder. 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