front 1 The major means of propelling food through the digestive tract is __________. -peristalsis | back 1 peristalisis |
front 2 In addition to storage and mechanical breakdown of food, the stomach ________. -initiates protein digestion and denatures proteins | back 2 initiates protein digestion and denatures proteins |
front 3 Fats significantly delay the emptying of the stomach. True | back 3 True |
front 4 Which organ of the digestive tract is the body's major digestive organ? -large intestine | back 4 small intestine |
front 5 Most digestion and absorption of nutrients occur in the __________. -large intestine | back 5 small intestine |
front 6 What part of the tooth bears the force of chewing? -pulp | back 6 enamel |
front 7 What is the major digestive function of the pancreas? -production of bicarbonate ions | back 7 production of digestive enzymes |
front 8 Which of the following is NOT a characteristic of the stomach? -The stomach releases enzymes to digest carbohydrates. | back 8 The stomach releases enzymes to digest carbohydrates |
front 9 Peristaltic waves are ________. -churning movements of the gastrointestinal tract | back 9 waves of muscular contractions that propel contents from one point to another |
front 10 The mucosa collapses inward when the stomach is empty, forming large folds known as __________. -rugae | back 10 rugae |
front 11 The __________ is the last segment of the small intestine. -colon | back 11 ileum |
front 12 How would you classify chewing food? -ingestion | back 12 mechanical breakdown |
front 13 Which of the following is not a factor that helps create the stomach mucosal barrier? -tight junctions of epithelial mucosa cells | back 13 production of intrinsic factor |
front 14 The mechanical and chemical receptors that control digestive activity are located ________. -in the glandular tissue that lines the organ lumen | back 14 in the walls of the tract organs |
front 15 Chemical digestion reduces large complex molecules to simpler compounds by the process of ________. -mastication | back 15 catabolism |
front 16 The __________ is the serous membrane that lines the abdominal body wall. -omenta | back 16 parietal peritoneum |
front 17 Most gastric ulcers are due to excessive production of hydrochloric acid. True | back 17 False |
front 18 Impacted wisdom teeth is a problem that is never observed in children because ______. -their teeth are generally too small to become impacted | back 18 they lack third molar teeth |
front 19 What muscle forms the labia of the mouth? -buccinator | back 19 obicularis oris |
front 20 Which of the following is NOT a structural modification of the small intestine to increase surface area? -circular folds | back 20 rugae |
front 21 There are three phases of gastric secretion. The cephalic phase occurs ________. -at the end of a large meal, and the juices secreted are powerful
and remain in the GI tract for a long period of time | back 21 before food enters the stomach and is triggered by aroma, sight, or thought |
front 22 From the esophagus to the anal canal, the walls of every organ of the alimentary canal are made up of the same four basic layers. Arrange them in order from the lumen. -submucosa, serosa, muscularis externa, and
mucosa | back 22 mucosa, submucosa, muscularis externa, and serosa (most, shy, monkeys eat, salad) |
front 23 The chemical and mechanical processes of food breakdown are called ________. -digestion | back 23 digestion |
front 24 All the chemical and mechanical phases of digestion from the mouth through the small intestine are directed toward changing food into forms that can pass through the epithelial cells lining the mucosa into the underlying blood and lymphatic vessels. True | back 24 True |
front 25 The __________ guards the entry of food into the stomach. -pyloric sphincter | back 25 cardiac sphincter |
front 26 Which layer of the alimentary canal is constructed from either stratified squamous or simple columnar epithelium? -serosa -mucosa -submucosa -muscularis externa | back 26 mucosa |
front 27 Which histological layer of the digestive tract is composed primarily of epithelial tissue? -lamina propria -adventitia -submucosa -mucosa | back 27 mucosa |
front 28 The lamina propria is composed of ________. -dense irregular connective tissue -reticular connective tissue -dense regular connective tissue -loose connective tissue | back 28 loose connective tissue |
front 29 The capillaries that nourish the epithelium and absorb digested nutrients lie in the ________. serosa submucosa adventitia lamina propria | back 29 lamina propria |
front 30 Which is not a function of saliva? Saliva cleanses the mouth. Saliva dissolves food chemicals so they can be tasted. Saliva contains enzymes that begin the chemical breakdown of proteins. Saliva moistens food and helps compact it into a bolus. | back 30 Saliva contains enzymes that begin the chemical breakdown of proteins |
front 31 How many deciduous teeth are there? 10 5 20 16 | back 31 20 |
front 32 Pepsinogen is the precursor to the gastric enzyme for protein digestion and is secreted by the parietal cells. True False | back 32 False |