Marieb Chapter 23 Digestive
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| T/F: Food is contained in the gastrointestinal tract from the time of ingestion until it is completely digested and the waste prepared for elimination. | show 🗑
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| T/F: Laparoscopy is the examination of the pericardial cavity using an endoscope | show 🗑
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| show | True
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| show | True
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| T/F: The soft palate rises reflexing to open the nasopharynx whe we swallow food. | show 🗑
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| show | True
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| T/F: The pharyngeal-esophageal phase of swallowing is involuntary and is controlled by the swallowing center in the thalamus and lower pons. | show 🗑
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| T/F: The cell type of the wall of the large intestine, excluding anal cells, is very different from that of the small intestine | show 🗑
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| show | False
secreted by the cheif cells
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| show | True
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| T/F: Chemical digestion of lipids is initiated in the mouth. | show 🗑
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| show | False
digesting starch
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| show | True
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| T/F: Peyerʹs patches are found in the submucosa of the distal end of the small intestine. | show 🗑
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| T/F: The myenteric nerve plexus provides the major nerve supply to the GI tract wall and controls GI motility. | show 🗑
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| T/F: The first teeth to appear are the deciduous teeth. | show 🗑
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| show | True
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| show | True
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| show | True
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| T/F: The stomachʹs contractile rhythm is set by pacemaker cells found in the spinal cord. | show 🗑
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| show | True
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| T/F: Most nutrients are absorbed through the mucosa of the intestinal villi by active transport. | show 🗑
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| T/F: Ionic iron is actively transported into the mucosal cells, where it binds to the protein ferritin, a phenomenon called the mucosal iron barrier. | show 🗑
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| T/F: The layer of muscle in the intestine directly in contact with the serosa is the circular layer. | show 🗑
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| T/F: The mucosa is found only in the jejunum because this is the only part of the small intestine in need of mucus. | show 🗑
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| show | True
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| The mechanical and chemical receptors that control digestive activity are located ________. | show 🗑
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| The function of the hepatic portal circulation is to ________. | show 🗑
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| show | digestion
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| show | chemical digestion
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| The sheets of peritoneal membrane that hold the digestive tract in place are called ________. | show 🗑
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| show | mucosa, submucosa, muscularis externa, & serosa
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| The epithelial membrane called the mucosa ____. | show 🗑
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| The capillaries that nourish the epithelium and absorb digested nutrients lie in the ________. | show 🗑
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| The plicae circulares and intestinal villi are found in which of the four layers of the alimentary tube wall? | show 🗑
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| show | intestinal crypts
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| show | There are 20 primary teeth, and by 24 months of age most children have all 20.
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| Which of the following is true concerning the number and type of permanent teeth? | show 🗑
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| Which of the following is not true of saliva? | show 🗑
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| The salivary glands are composed of which two types of secretory cells? | show 🗑
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| show | electrolytes, digestive enzyme, mucin, lysozyme, wastes, and IgA
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| show | initiates protein digestion and denatures proteins
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| Chyme is created in the ________. | show 🗑
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| show | parietal cells
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| show | enteroendocrine cells
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| There are three phases of gastric secretion. The cephalic phase occurs ________. | show 🗑
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| Peristaltic waves are ________. | show 🗑
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| Gastrin is a digestive hormone that is responsible for the stimulation of acid secretions in the stomach. These secretions are stimulated by the presence of ________. | show 🗑
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| show | chief cells of the stomach
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| show | amylase
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| show | hydrolysis
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| show | lipase
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| Parietal cells of the stomach produce ________. | show 🗑
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| Hepatocytes do not ________. | show 🗑
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| Which vitamin requires intrinsic factor in order to be absorbed? | show 🗑
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| Chief cells ________. | show 🗑
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| Chemical digestion reduces large complex molecules to simpler compounds by the process of ________. | show 🗑
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| The ________ contains lobules with sinusoids (lined with macrophages) that lead to a central venous structure. | show 🗑
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| show | serosa
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| The terminal portion of the small intestine is known as the ________. | show 🗑
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| Digestion of which of the following would be affected the most if the liver were severely damaged? | show 🗑
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| ________ is locally regulated in the blood by the active form of vitamin D, which acts as a cofactor | show 🗑
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| The lamina propria is composed of ________. | show 🗑
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| Chemical digestion in the small intestine involves ________. | show 🗑
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| show | If intact proteins are transported across the villus epithelium, an immune response may be generated.
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| Select the correct statement about electrolyte absorption. | show 🗑
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| show | pancreas
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| show | Bile would be released from the gallbladder to emulsify the fat in the duodenum
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| A baby is admitted to the hospital with a history of projectile vomiting after each feeding. On examination, it is found that the sphincter controlling food passage from the stomach to the duodenum is thickened and does not open readily. Because of the ba | show 🗑
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| Hormones that inhibit gastric secretion include ________. | show 🗑
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| show | inferior vena cava
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| show | nitric acid
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| There are some 20 known pathogens found in the large intestine; our Ig ________ antibody-mediated response restricts them from going beyond the mucosa and causing problems. | show 🗑
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