NUR 324 Lecture Notes - Lecture 17: Long-Term Care, Parotid Gland, Submucosa
Document Summary
Major functions of the digestive tract: breakdown of food for digestion. Digestion: phase of the digestive process that occurs when enzymes mix with ingested food a when proteins, fats and sugars are broken down into their component molecules: absorption of nutrients produced by digestion into the blood stream. Absorption: phase of the digestive process that occurs when small molecules, vitamins and minerals pass through walls of the small and large intestine and into the blood stream: elimination of undigested foodstuffs and other waste products. Liver: produces bile to digest food in small intestine pancreatic amylase). That flow through the pancreatic duct to the small intestine (also insulin and glucagon: the sphincter of oddie at common bile duct and duodenum controls the flow of bile. Small intestine: gi motility, peptide transport, fat absorption, villi produce digestive enzymes and absorbs nutrients. Large intestine: breakdown of waste materials, sodium, reabsorption, defecation.
