To determine: Whether the lumen of the digestive tract is located on the apical side or basolateral side of the intestinal epithelium.
Introduction: The
To determine: Whether the lumen of the digestive tract is located on the serosal side or mucosal side of the intestinal epithelium.
Introduction: The length of the small intestine of humans is about 20 feet long. Small intestine lies between the stomach, and large intestine and its primary function of the small intestine is the absorption of the food.
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Human Physiology: An Integrated Approach (8th Edition)
- Explain the differences between the digestion roles of the small and large intestines. Does the appendix also have a digestive function?arrow_forwardHow do the tunics of the esophagus differ from the “default” tunic pattern in both the mucosa and muscularis?arrow_forwardwhat are the general structural features of the four concentric layers of the digestive tract and discuss each.arrow_forward
- Where in the alimentary canal does chemical digestion begin for each of the three types of food: carbohydrates, proteins, and fats?arrow_forwardThe small intestine can be divided into 3 regions: duodenum, jejunum, ileum. How does the unique structure of each region match its function?arrow_forwardWhy doesn’t gastric juice destroy the stomach cells that make it? Identify the cells making up the gastric gland.What contributes to the absorption capacity of the small intestine?arrow_forward
- Achlorhydria is a condition in which the stomach stops producinghydrochloric acid and other secretions. What effect would achlorhydriahave on the digestive process? On red blood cell count?arrow_forwardList the sections of the large intestine in order starting with the cecum (do not include the appendix). What type of epithelium lines the large intestine? How does the lining protect itself against increasingly dry and abrasive contents? What are the haustra?arrow_forwardWhich cell type occurs in the stomach mucosa, has three prongs, contains many mitochondria and many microvilli, and pumps hydrogen ions? (a) absorptive enteroyte, (b) parietal cell, (c) mucussecreting cell, (d) chief cell, (e) mucous neck cell.arrow_forward
- All 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 certainarrow_forwardWhich of the following is a true statement concerning this region of the digestive tract? 1. This region of the digestive tract is classified as intraperitoneal. 2. This region of the digestive tract is supplied by the superior mesenteric artery (demonstrating multiple arcades) 3. This region of the digestive tract functions in most of the enzymatic digestive activities and nutrient absorption. 4. This region of the digestive tract is supplied sympathetic innervation via the least splanchnic nerve. Choose from the following: (A) 1 and 2 (B) 1 and 3 (C) 2 and 3 (D) 1, 2, and 4 (E) 3 and 4arrow_forward
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