chapter 23 openstax practice questions and answers

chapter 23 openstax practice questions and answers 8. Which of these organs is not considered an accessory digestive structure? a. mouth b. salivary glands c. pancreas d. liver - ANS a. mouth 9. Which of the following organs is supported by a layer of adventitia rather than serosa? a. esophagus b. stomach c. small intestine d. large intestine - ANS a. esophagus 10. Which of the following membranes covers the stomach? a. falciform ligament b. mesocolon c. parietal peritoneum d. visceral peritoneum - ANS d. visceral peritoneum 11. Which of these processes occurs in the mouth? a. ingestion b. mechanical digestion c. chemical digestion d. all of the above - ANS d. all of the above 12. Which of these processes occurs throughout most of the alimentary canal? a. ingestion b. propulsion c. segmentation d. absorption - ANS b. propulsion 13. Which of the following stimuli activates sensors in the walls of digestive organs? a. breakdown products of digestion b. distension c. pH of chyme d. all of the above - ANS d. all of the above 14. Which of these statements about reflexes in the GI tract is false? a. Short reflexes are provoked by nerves near the GI tract. b. Short reflexes are mediated by the enteric nervous system. c. Food that distends the stomach initiates long reflexes. d. Long reflexes can be provoked by stimuli originating outside the GI tract. - ANS a. Short reflexes are provoked by nerves near the GI tract.