PPT-The Digestive System The Main Functions of the Digestive System

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 . 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. . and Muscular. Systems . By Blandy , Esmeralda , Misty , Alexis , Idaly. Digestive system. The digestive tract (also known as the alimentary canal) is the system of organs within multicellular animals that takes in food, digests it to extract energy and nutrients, and expels the remaining waste.. Lesson5– . Digestive System Model. Objectives. :. Students will gain a full understanding of how the digestive and excretory system work in their own . bodies.. Students will be able to name the parts of the digestive system.. Objectives. :. You . will use and understand the scientific process for groups experiments. Students will gain a full understanding of how the digestive and excretory system work in their own bodies. Essential Question. What are the structures of the digestive system?. 2.07 Remember the structures of the . digestive . system. 2. Structures of the digestive system. Digestive system. Also known as:. 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.. 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.. GI tract. (gastrointestinal . (digestive) . tract. alimentary canal). Accessory organs:. teeth, . salivary . glands, . liver. , . gallbladder. , . pancreas. Digestion Involves Many Processes:. INGESTION. Learning Objectives. Define Key Terms relating to the digestive system. Describe the four functions of the digestive system. Identify at least 10 digestive system structures and the function of each. 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:. NUTRIENTS IN DIGESTIVE SYSTEM. They. are . substances. . that. . plants. and . animals. . need. . to. . live. and . grow. .. The. . digestive. . system. . is. . the. . group. of . organs. . Qattan. 2. The GI tract. . (gastrointestinal tract). . Mouth. Pharynx. Esophagus. Stomach. Small intestine. Large intestine. Anus. The accessory digestive organs. Supply secretions contributing to the breakdown of food. 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.