Question#9 Which statement about gastric motility is NOT correct? A.The gastric slow wave resembles the cardiac action potential in shape. B.Weak contractions of the fundus and body of the storach subserve the reservoir function of the stomach. c Liquids are emptied a good deal more rapidly from the stonach than digestible solids. D.Larger indigestible ob iects.that remain in the stomach during emptving of a neal.are often emptied during the active contractile phase of the migrating myoolectric complex. E.None of the above. Question#10 Which statement about gastric motility is NOT correct? A.When action potential spikes occur.they result in ipcreased contractile force. BA wave of contraction begins in md-body and moves toward the pylorus,gaining in contractilestrength as it moves C.The pylorus is constricted for a longer time than it is relaxed. D.Secretin,a hormone released by the duodenum,acts to increase the rate of gastric emptying. E.None of the above. Question #11 Which of the following statements is NOT true? A.The fundus and body relax in response to being filled.This is called receptive relaxation. B.Peristaltic contractions of the stomach begin in the middle of the body and travel toward the pylorus. gaining in strength as they travel. C.The force of contraction of gastric smooth mscle is independent of the presence of action potentials on top of the slow waves. D.Indigestible objects in the stomach are likely to be emptied during the migrating myoelectric complex. E.When gastric smooth muscle is depolarized,the theshold for contraction is reached before the threshold for firing action potentials. Question#12 Which of the following statements is NOT true? A.Just after a meal,gastric contractions occur at the frequency of gastric slow waves,about 3 per minute. B.CCK and gastrin enhance the force of gastric contractions and increase the tone of the pyloric C.During the contractions of the migrating myoelectric complex in the stomach the pyloric sphincter-------------------------------------------------------------------------------- Question # 9 Which statement about gastric motility is NOT correct? A. The gastric slow wave resembles the cardiac action potential in shape. B. Weak contractions of the fundus and body of the stomach subserve the reservoir function of the stomach. C. Liquids are emptied a good deal more rapidly from the stomach than digestible solids. D. Larger indigestible objects, that remain in the stomach during emptying of a meal, are often emptied during the active contractile phase of the migrating myoelectric complex. E. None of the above. -------------------------------------------------------------------------------- Question # 10 Which statement about gastric motility is NOT correct? A. When action potential spikes occur, they result in increased contractile force. B. A wave of contraction begins in mid-body and moves toward the pylorus, gaining in contractile strength as it moves. C. The pylorus is constricted for a longer time than it is relaxed. D. Secretin, a hormone released by the duodenum, acts to increase the rate of gastric emptying. E. None of the above. -------------------------------------------------------------------------------- Question # 11 Which of the following statements is NOT true? A. The fundus and body relax in response to being filled. This is called receptive relaxation. B. Peristaltic contractions of the stomach begin in the middle of the body and travel toward the pylorus, gaining in strength as they travel. C. The force of contraction of gastric smooth muscle is independent of the presence of action potentials on top of the slow waves. D. Indigestible objects in the stomach are likely to be emptied during the migrating myoelectric complex. E. When gastric smooth muscle is depolarized, the theshold for contraction is reached before the threshold for firing action potentials. -------------------------------------------------------------------------------- Question # 12 Which of the following statements is NOT true? A. Just after a meal, gastric contractions occur at the frequency of gastric slow waves, about 3 per minute. B. CCK and gastrin enhance the force of gastric contractions and increase the tone of the pyloric sphincter. C. During the contractions of the migrating myoelectric complex in the stomach the pyloric sphincter