PPT-Chapter 21: Digestive and Excretory Systems

211 Nutrition Nutrition The process of getting the food needed to survive Food provides energy and raw materials Malnutrition Occurs when a person does not get enough to eat or when the food eaten does not provide all of the nutrients needed. And 57375en 57375ere Were None meets the standard for Range of Reading and Level of Text Complexity for grade 8 Its structure pacing and universal appeal make it an appropriate reading choice for reluctant readers 57375e book also o57373ers students 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.. GI tract. (gastrointestinal . (digestive) . tract. alimentary canal). Accessory organs:. teeth, . salivary . glands, . liver. , . gallbladder. , . pancreas. Digestion Involves Many Processes:. INGESTION. Excretion is the process of eliminating . waste. .. There are several systems within our bodies that help us to eliminate waste products. . Excretory (. Urinary. ) – eliminates . liquid. waste. Digestive- disposes of . Metabolism. -is the sum total of all reactions going on in . cells.. Waste. -the reactions of metabolism produce a range of waste called excretory products, which the body needs to get rid of.. . Liang. , Kimberly Maldonado , and . Julian Smith. Parts of the body that supports the Digestion . system . Mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas, gall bladder, colon, anus, salivary glands, chemical digestion, mechanical digestion. Skin. Lungs. Liver. AIM. : How is the human excretory system structured to help maintain homeostasis?. Bellwork. : Take out HW. Homework. : Read pages 985-989, Q# 1-4 on page 989. - Exam . Monday 1/9. By. Emir Fils-Aimé, Alexis Murray, and Melody Schwenk. AP Biology-Ms. Stein, Due 4/14/10. The Digestive System: Part I. “Food’s Highway”. Digestion. To be processed and expelled, food must pass through various digestive organs . Chapter 24 Digestive and Urinary Systems Section 1: Objectives Compare mechanical digestion with chemical digestion. Describe the parts and functions of the digestive system. The Digestive System Derivatives include respiratory system, liver, pancreas, . gall bladder and . endocrine . structures . All are endodermal in . origin. Digestive System includes . digestive tract. Mouth & Pharynx — Small Intestine. cardiac musclesund only in the heart, they Minnesota Department of HealthELL Curriculum Project Lesson 8Muscular and Digestive Systems and Hepatitis BReadingComprehension Hepatitis B Virus (HBV)Biolog 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. . Management. Tips and Tricks. Digestive System. The digestive system is complex. It starts in your mouth with chewing and mixes food with saliva. The food continues to your stomach, where you secrete digestive juices to further break down the food.