Which of the following statement(s) about the digestive system is (are) correct? SELECT ALL THAT APPLY: Vitamin K promotes blood clotting, and it is synthesized by bacteria in the large intestine. O Lactose intolerance means that a person is allergic to lactose. O Peristalsis and segmentation result from contractions of the smooth muscle of the muscularis externa. O Chylomicrons are absorbed by lacteals.
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- Which is NOT a correct association of ruminant stomach organ and its function? O rumen-first chamber where cud is formed O omasum-water, soluble food, and microbial products are absorbed O abomasum-true acid stomach with proteolytic enzymes O reticulum-final chamber where undigested pulp is stored for disposal O All of the choices are correct ruminant associations.The highest absorption efficiency for Vitamin E is __________________ and it must be solubilized as ______________________ in the intestinal lumen. 20%, chylomicrons 50%, chylomicrons 20%, micelles 50%, micellesWhich of the following is necessary in order to have the start of chemical digestion of proteins by pepsin in the stomach? O Secretions from mucus neck cells O Two of the listed options O Secretions from chief cells O All of the listed options O Secretions from parietal cells
- While there are numerous structural similarities among the major histological tissues of alimentary canal organs, there are also unique characteristics in specific organs. Which of the following descriptions of the tissue layers contains inaccurate information? O A. The muscularis externa layer in the stomach is unique because it contains 3 layers of smooth muscle instead of just 2. O B. The submucosa in the esophagus is unique because it has esophageal glands that secrete a lot of mucus. OC The mucosa layer in the stomach is unique because it contains complex gastric pits with chief cells (that produce enzymes), parietal cells (that secrete acid), and enteroendocrine cells (that secrete digestive hormones). O D. All the other choices have no inaccurate information. O E. The mucosa layer in the small intestine is unique because it is responsible for the majority of chemical digestion and nutrient absorption. It has a brush border, and multiple structures to increase surface area…From the stomach 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 of their location starting with layer closest t lumen. O mucosa, submucosa, muscularis externa, and serosa O muscularis externa, serosa, mucosa, and submucosa O serosa, mucosa, submucosa, and muscularis externa submucosa, serosa, muscularis externa, and mucosa O serosa, muscularis externa, submucosa, mucosaAll the structures of the alimentary canal have 4 similar major histological tissues . Which of the following descriptions of the tissue layers contains innacurate information? A) The mucosa layer consits of a simple epithelium (responsible for absoprtion), a lamina proprioa (supports the epithelium) and muscularis mucosae (thats ivolved with peristalsis. B) The muscularis externa has 2 or 3 layers of smooth msulce and is involced with persistalsis C) The submucosa layer is a connective tissue layer that anchors the mucosa layer and contains many blood vessels, lyphatic vessels, and nerves D) The serosa layer is a connective tissue layer that tethers the alimnetary canal to the appropirate body cavitities. I believe that D is false but I am not certain
- Which of the following types of movement is responsible for the mixing of food in the GI tract? Group of answer choices Deglutition Mass movement Peristalsis Segmentation In the digestion of lipids, a chylomicron contains Group of answer choices Both monoglycerides and fatty acids Monoglycerides Fatty acids Triglycerides Which of the following components of digestion is responsible for the chemical breakdown of foods? Group of answer choices Chewing Enzymatic hydrolysis Dissolving Emulsification Which of the following is a hormone that stimulates the pancreas to secrete bicarbonate? Group of answer choices Cholecystokinin Secretin Gastrin Glucose-dependent insulinotropic peptideWhat is found within the muscularis externa that controls peristalsis and segmentation? O serosa O MALT O myenteric nerve plexus O submucosal glands O adventitia Question 28 In which of these structures can you find skeletal muscle in the muscularis externa? O ileum O esophagus O stomach O duodenum O cecumWhich of the following sphincters is under voluntary control? O Sphincter for the main pancreatic duct External anal sphincter O Internal anal sphincter O Pyloric sphincter O Cardiac sphincter Question 38 What is the submucosa of the alimentary canal? O A mucous lined layer of goblet cells O A thick smooth muscle layer for movement O A thin epithelial layer that is continuous with the mesentery O A layer of connective tissue that includes a nerve plexus and blood vessels O Layer that lines the lumen of the canal
- In cases of extreme emergency when the upper air passageway is blocked by a foreign object to the extent that the victim cannot breathe, quick reaction is required to save the person's life What procedure is designed to force such an object out of the air passage by the sudden application of pressure to the abdomen? O Heimlich maneuver O Leopold's maneuver O Cardiopulmonary resuscitation O Valsalva maneuver 50 51 52 53 54 55 56 57 58 59Which would be most effective in shutting down protein digestion in the small intestine? Preventing the release of bile salts from the gall bladder O Preventing the release of trypsinogen from pancreas Preventing release of hydrochloric acid from parietal cells Preventing the release of pancreatic alpha amylase Preventing release pepsinogen from chief cellsHow would removal of 95% of the stomach (subtotal gastrec-tomy) to treat severe ulcers or cancer affect digestion andabsorption? How would the patients have to alter eating hab-its? Why? Do you think that people should have this type ofsurgery to treat life-threatening obesity?