Updated Pathophysiology Exam 4 Questions With Complete Solutions

Which layer of the digestive tract is in direct contact with the food consumed? a. mucosa b. muscularis c. submucosa d. serosa e. peritoneum - ANS a. mucosa Saliva a. is produced only when there is food in the mouth b. increases ulceration in the mouth c. moistens food and begins starch digestion in the mouth d. is responsible for peristalsis in the mouth e. does not prevent bacterial infection in the mouth - ANS c. moistens food and begins starch digestion in the mouth The salivary glands located just anterior to the ear are the a. parotid glands b. submandibular glands c. buccal glands d. labial glands e. sublingual glands - ANS a. parotid glands Food is prevented from entering the nasal cavity during swallowing by the a. epiglottis b. palatine tonsils c. tongue d. soft palate e. hard palate - ANS d. soft palate Which of the following are secreted by the stomach? a. amylase and lipase b. pepsinogen and intrinsic factor c. bile and lipase d. trypsin and amylase e. bicarbonate and secretin - ANS b. pepsinogen and intrinsic factor Gastrocolic reflexes are reflexes that a. empty the stomach b. release gastric secretions into the stomach c. cause mass movements of the colon when food is present in the stomach d. lead to mass movements of the colon in response to food in the duodenum e. stop movements in the colon - ANS c. cause mass movements of the colon when food is present in the stomach Which of the following represents a mismatch in stomach wall structure? a. muscularis - two layers; both circular b. rugae - folds of mucosa and submucosa c. mucosa - gastric glands d. gastric pits - open onto surface of stomach mucosa e. lining - simple columnar epithelium - ANS a. muscularis - two layers; both circular Anticipation of eating food causes an increase in secretion of gastric juice. This phase of gastric secretion is called the _____ phase. a. cephalic b. gastric c. intestinal d. pancreatic e. conscious - ANS a. cephalic