DIGESTIVE SYSTEM REVIEW Slide #1: The organs of the GI tract that breakdown food into nutrients and make waste from food Slide #2: What is the general function of the digestive system? Breakdown food into usable nutrients Slide #3: Which is chemical-- Mixing food with substances to make it digestible. and which is mechanical digestion-- Breaking down food into smaller bits Slide #4: Which of these are alimentary canal structures (anything the food passes through)-- Large intestine, small intestine, stomach, esophagus and which are accessory organs (anything that aids digestion) -- liver, pancreas, gall bladder, teeth? NOTE: kidney HAS NOTHING TO DO WITH DIGESTION! Slide #5: What is the difference between the alimentary canal and accessory organ? Food passes through the alimentary canal structures—accessory organs contribute something to the process of digestion. Slide #6: List, in order, the six general sections of the alimentary canal. Mouth (oral cavity) pharynx, esophagus, stomach small intestine, large intestine Slide #7: What is saliva—mixture of water and chemicals that begin digestion in the mouth and what are the names of the three glands that make it—1. Parotid, submandibular and sublingual? Slide #8: What enzyme is released by the salivary glands that begins carbohydrate digestion and where does it begin? Amylase changes starch to maltose and it begins in the mouth Slide #9: What are the parts of the tooth? 1. Crown 2. Neck 3. gingivae 4. root 5. Enamel 6. Dentin 7. Pulp 8. Cementum 9. Periodontal ligament Slide #10: Match these words with their function: deglutition-- swallowing, mastication-- Chewing, maceration-- stomach churning, segmentation-peristalsis in the small intestine, haustral churning-- peristalsis in the large intestine Slide #11: Where is the fundus in the stomach? superior dome-shaped portion What is a sphincter? Ring of smooth muscles that constrict and relax to help move contents from one area of the digestive system to another What is rugae? Folds in the stomach that increase the surface area What is the pylorus? Part of the stomach that connects to the duodenum—there is a sphincter in this area Slide #12: What is the name of the acid of gastric juice? What is the name of the substance that begins protein digestion? Hcl, pepsin begins protein digestion in the stomach Slide #13: Which of these organs secretes bile? Stomach, kidney, liver, pancreas Where is it stored? Gall bladder—made in liver Slide #14: What digestive function does the pancreas have? Completes the digestion of fats, carbohydrates, and proteins Slide #15: What is the function of bile? Liver makes bile, it is stored in the gall bladder and it is used to break down fats in the small intestine Slide #16: Which of these organs have haustra? Stomach, esophagus, small intestine, large intestine, liver, pancreas Slide #17: Which is the middle section of the small intestine? Jejunem, ileum, duodenum Slide #18: Which part of the large intestine is shaped like an S? Descending, ascending, cecum, sigmoid, rectum, anus Slide #19: List, in order, the sections of the large intestine. Cecum-ascending colon, transverse colon, descending colon, sigmoid colon, rectum, anal canal, anus Slide #20: What is an ulcer, where can it occur and how is it treated? Stomach lining wears away and is damaged. Caused by H. pylori backteria and treated with antibiotics. Slide #21: What organ can get cirrhosis and what is it? Liver, liver becomes filled with fatty tissue and hardens Slide #22: What organ can get hepatitis and what is it? Liver—liver is inflamed by a variety of causes