PPT-DIGESTIVE SYSTEM

Functions of the alimentary mucosa 1 Barrier function The mucosa serves as a barrier to the entry of noxious substances antigens and pathogenic organisms 2 Immunologic function Lymphatic tissue in the mucosa serves as a first line of defense of the body by the immune system. 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. 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 . 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:. 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. 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.. Systems Key. I. The . Respiratory System. Define . respiratory system.. The system that functions to get oxygen from the environment and remove carbon dioxide and other waste products.. I. The Respiratory System. 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. Bell Work. Please answer these “pre-test” questions:. 1) Which has a longer length – the large intestine or the small intestine?. 2) True or False: Digestion begins as soon as it enters the mouth. 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. The digestive system has . three main . functions: . to convert food into nutrients your body . needs. Absorption. R. id . the body of . waste. To . do its job, the system requires the cooperation of a number of different structures and organs throughout the body, including the mouth, stomach, intestines, liver, pancreas and  gallbladder.. 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. . Science and Mathematics Education Research Group. Supported by UBC Teaching and Learning . Enhancement . Fund . 2012-2015. Department of . Curriculum and Pedagogy. FACULTY OF EDUCATION. a place of mind.