The Digestive and Urinary Systems :: essays research papers

Digestive and Urinary SystemLesson 1 The Digestive SystemTermsqDigestionqAbsorptionqEliminationqMasticationqPeristalsisq gastric JuicesqBileFunctions of the Digestive SystemqDigestion, Absorption, and Elimination.qDigestion occurs in the digestive tract which includes1.Mouth Mastication occurs and enzymes produced by salivary glands starts digesting carbohydrates.2.Esophagus 10 in. immense and extends from the pharynx to the stomach. fare moves down the esophagus by the peristalsis. The sphincter, a circular muscle at the entrance of the stomach opens and closes to allow victuals to enter the stomach. 3.Stomach Holds about 1qt of food for 3-4 hours and controls the rate at which it enters the thin intestine. It also produces Chyme and Gastric Juices.4.Small Intestine 20ft (6m) long, 1in (2.5cm) in diameter. Consist of 3 parts the duodenum, the jejunum, and the ileum. Intestinal juice, secretions from the liver and pancreas complete chemical substance breakdown.5.Large Intestine ( Colon) 2.5in (6cm) in diameter and 5-6ft (1.5-1.8m) long. The main function of the large intestine is the elimination of waste and the absorption of water. The water is absorbed into the bloodstream separate Organs that aid DigestionqThe liver, gallbladder, and pancreas are essential for the digestion of carbohydrates, proteins, and fats.1.Liver the largest gland in the body qWeighs about 3.5 lbs. qDark reddish brown colorqOver ergocalciferol functionsqProduces bileqConverts sugar glucose to glycogen and stores itqMaintains level of glucose in the bloodqChanges harmful to less harmful toxinsqStores vitamin A, D, E, K, B12, and Iron2.Gallbladder Small sac about 3-4 in. (7-10cm) longqStores bile until food moves from the stomach into the duodenum of the small intestine.3.Pancreas a gland of the digestive and endocrine system.qProduces insulinqProduces 3 digestive enzymes1.trypsin digest protein2.amylase digest carbohydrates3.lipase digest fatsqThese enzymes are released into the smal l intestines through ducts. Lesson 2 Problems and care of the Digestive SystemsTermsqIndigestionqHiatal herniaqGallstonesqPeptic ulcersqGastritisqAppendicitisqHepatitisCommon Functional ProblemsqHalitosis (bad breath), can result from disorders of the teeth and gums caused from poor oral examination health care.qIndigestion occurs when your body doesnt properly breakdown foods. This can be caused by eating too much ,eating too fast, or by indulging in an excess of alcohol. qHeartburn occurs when acid content from the stomach backs up into the esophagus. If a person has hiatal hernia they may experience heartburn.qGas a certain amount of gas in the stomach or intestine is normal but some foods can cause an excess of gas.qNausea and upchuck this can be caused by motion, pathogens, medicines, drugs, and other substances in the stomach. Nausea precedes vomiting. Vomiting is reverse peristalsis.