Some of the intestinal epithelial cells, called goblet cells, contain small globules of mucus. Why are there cells in the small intestine that produce mucus?
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Some of the intestinal epithelial cells, called goblet cells, contain small globules of mucus. Why are there cells in the small intestine that produce mucus?
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- Crohn disease causes inflammatory reactions that damage the lining of the intestines. In areas where attacks are occurring, the inflammation can cause damage to the entire lining, so that the contents of the lumen of the intestine are exposed to, for example, the peritoneal cavity. Describe the layers that this inflammation would need to penetrate in order to damage the entire wall of the intestine. Inflammation begins at the epithelial lining.The smooth muscle cells are arranged in two different ways in intestinal wall. Explain the significance of two different arrangements of smooth muscle cells in intestinal wall i.e. how these arrangements relate to the function.What is the importance of goblet cells in the intestinal epithelium
- where are replacement cells produced that prevent the lining of the small intestine from, being lost as the cells die in this very hostile environment?The single layer of columnar epithelial cells lining the small intestine has a brush border of microvilli. How do you think microvilli increase absorption?A.) What major transition in cell types happens from the esophagus into the stomach? B.) How are the major change discussed in question 8 related to the functions of the esophagus versus the stomach? C) What type of epithelial tissue is the primary type that forms the inner mucosal layer of the small intestine?
- Zollinger-Ellison syndrome is a peptic ulcer disease characterized by overproduction of gastric acid. Which two types of stomach cells are most likely involved in Zollinger-Ellison Syndrome?The inflammatory bowel disease ulcerative colitis is thought to be a result of a breakdown of the mucus barriers within the intestine due to reduced mucus production. Therefore, in ulcerative colitis patients you would expect to observe a decrease in the amount of: 1) goblet cells 2) circular muscle 3) submucosa 4) serosaHow many major types of cells gastric glands have? Explain.
- When food is digested, it passes through the alimentary canal, or the gastrointestinal tract, beginning at the mouth and ending at the anus. As it travels it gets broken down into smaller and smaller macromolecules until they are small enough to be absorbed into the lining of the GI tract. What cells would you not expect to find in the lining of the GI tract?Discuss why the tunica mucosa in the colon has a high percentage of goblet cells to produce mucin.Watch this animation (http://openstaxcollege.org/l/sintestine) that depicts the structure of the small intestine, and, in particular, the villi. Epithelial cells continue the digestion and absorption of nutrients and transport thesenutrients to the lymphatic and circulatory systems. In the small intestine, the products of food digestion are absorbed by different structures in the villi. Which structure absorbs and transports fats?