PPT-Digestive System: Oral Cavity and Feeding Mechanisms

Introduction Acquiring food for energy to drive metabolism and other physiological processes is central to the survival of the individual Competition for food resources is often intense in the animals natural surroundings therefore increasing the efficiency with which you collect and process food is at a premium in natural selection . 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:. General Biology II. BSC 2011. Insert photo here representing. chapter. (credit: . modification of work by Julie Rybarczyk). Types of Digestive Systems. Heterotrophs are divided into three groups based on their food sources. Formation of the Digestive Cavity. At the Blastula stage, the embryo forms a fluid filled ball of cells. During Gastrulation, the blastula caves in on one end to form a Gastrula. The cavity formed by gastrulation will form a digestive cavity or digestive tract.. Where . Digestion . begins. Contains several structures that help start digestion. . A. . . Teeth. : Break . down . food. 32 . in an adult; 20 in a . child. 1. Oral Cavity. B. . . saliva. : . keep . ANATOMY OF THE DIGESTIVE SYSTEM Kaan Yücel M.D., Ph.D . 21.November.2014 Friday The oral region includes the oral cavity , teeth , gingivae , tongue , palate , and the region of the palatine tonsils NUTRIENTS IN DIGESTIVE SYSTEM. They. are . substances. . that. . plants. and . animals. . need. . to. . live. and . grow. .. The. . digestive. . system. . is. . the. . group. of . organs. PowerPoint® Lecture Slides prepared by Jason LaPres. Lone Star College - North Harris. Introduction to the Digestive System. Acquires nutrients from environment. Anabolism. Uses raw materials to synthesize essential compounds. System. Dr.Fadia. Al-. khayat. The digestive system is composed of a continuous tract beginning with the oral cavity and ending at the anus. this tract is called the . alimentary canal . or the . gastrointestinal tract (GIT). Regions of the Face . Forehead: Extending from the eyebrows to the hairline. Temples: Anterior to the eyes. Orbital: Eye area that is covered by the eyelids. External nose. Regions of the Face . cont.. 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,. Squamous Cell Carcinoma Jeremy Price, MD, PhD Faculty Advisor: Yvonne Mowery, MD, PhD Duke University, Durham, NC, USA Case: History • HPI : 81F presents with left facial swelling , difficulty ch 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. . Ingestion. . – taking food/drink into mouth.. Propulsion. . – movement through alimentary canal (swallowing, peristalsis).. Mechanical Digestion. . – . Physical. breakdown of food (chewing, churning).. Disease Control and Prevention Center. Oral. . Care. . Does. . Not. . Mean. . Tooth. . Brushing.. Oral Care is a means of improving the QOL of the patient by maintaining or restoring oral functions..