PPT-Digestive System The digestive system has two main functions:

to convert food into nutrients your body needs and to rid the body of waste To do its job the system requires the cooperation of a number of different organs throughout the body including the mouth stomach intestines liver and  gallbladder. By Mr. Style. Parts of the Digestive System. The Mouth:. The . mouth is the beginning of the digestive system, and, in fact, digestion starts here before you even take the first bite of a meal. The smell of food triggers the salivary glands in your mouth to secrete saliva, causing your mouth to water. When you actually taste . A. Bacterial Diseases of the Upper Digestive Tract (Mouth & Stomach). 1. Tooth Decay (dental caries). A) This is an endogenous infection . 1) Most common infectious disease of humans . 2) Young are more susceptible than old. The . digestive system . is involved in the ingestion and digestion of food and elimination of indigestible material.. Digestion takes place within the . digestive tract. , which begins with the mouth and ends with the anus.. Section 1: Overview of the Digestive System (pp. 852-854). Two groups of organs. :. . 1) . Alimentary. canal. . - also known as . gastrointestinal. or . GI. tract. . - . digests. & . What do you already know?. Complete the Digestive System Handout to the best of your ability without looking in any text or your notes.. You may work in groups.. Do not complete the bottom overview.. functions. :. Breaks down food into molecules. Absorption of food molecules into the blood. Elimination of waste from the body. There are 2 . kinds of digestion. :. Mechanical – food is broken down into smaller pieces. The digestive system is used for breaking down food into nutrients . which then pass into the circulatory system and are taken to where they are needed in the body.. Introduction. There . are four stages to food digestion:. the human body systems . interact? . Today I will learn about the integumentary and lymphatic systems because both systems are responsible for protecting the human body from . disease. .. Fact or Fiction? (7 minutes). NUTRIENTS IN DIGESTIVE SYSTEM. They. are . substances. . that. . plants. and . animals. . need. . to. . live. and . grow. .. The. . digestive. . system. . is. . the. . group. of . organs. pharynx to esophagus all food changes that occur in the alimentary canalAnatomy Physiology Digestive System Ziser 2003breaking large molecules proteins fats starches etca thick coating of bicarbona 1. Gastrointestinal (GI) Tract. A) . Tubular . structure from mouth to anus. 2. Accessory Structures. A) . Teeth. , tongue, salivary glands, liver, gallbladder & pancreas. Digestive System. B. 6 basic processes. 2.08 Understand the functions and disorders of the digestive system. Essential questions. What are the functions of the digestive system?. How do the functions of chemical and physical digestion interrelate?. continual supply . of water, electrolytes, and . nutrients.To. achieve . this requires . (. 1) movement of food through. the alimentary tract; (2) secretion of digestive juices. and digestion of the food; (3) absorption of water,. Ingestion: . The in take of food into the digestive tract through the mouth. Mechanical Processing: . The physical manipulation of solid foods into materials that are easier to propel through the digestive tract. Also increases the solid foods surface area which makes them more susceptible to enzyme activity and easier to absorb. .