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Colon Anatomy Quiz
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Colon Anatomy Quiz

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@ThoughtfulRetinalite

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Questions and Answers

Which layer of the gastrointestinal tract contains the inner circular and outer longitudinal layers of smooth muscle?

  • Submucosa
  • Mucosa
  • Serosa
  • Muscularis (correct)
  • Which layer of the gastrointestinal tract is made of loose areolar connective tissue and contains blood and lymph vessels?

  • Serosa
  • Muscularis
  • Mucosa
  • Submucosa (correct)
  • Which layer of the gastrointestinal tract is also known as the visceral peritoneum and contains a serous membrane covered by serous fluid?

  • Mucosa
  • Muscularis
  • Submucosa
  • Serosa (correct)
  • Which cells in the gastric glands secrete HCl and intrinsic factor?

    <p>Parietal cells</p> Signup and view all the answers

    What is the function of goblet cells in the small intestine?

    <p>Secrete mucous</p> Signup and view all the answers

    Which layer of the stomach is made up of three layers of smooth muscle?

    <p>Muscularis externa</p> Signup and view all the answers

    What type of folds are present in the duodenum?

    <p>Plicae circularis</p> Signup and view all the answers

    Which one of these is true about the anorectal junction?

    <p>It marks the transition from the rectum to the anal canal.</p> Signup and view all the answers

    Which one of these is true about the squamocolumnar region?

    <p>It is located above the pectinate line.</p> Signup and view all the answers

    Which one of these statements is correct about the pectinate line?

    <p>It is found in the squamocolumnar region.</p> Signup and view all the answers

    Which type of epithelium covers the villi in the small intestine?

    <p>Simple columnar epithelium</p> Signup and view all the answers

    Which glands are prominent in the proximal duodenum and slowly disappear in more distal areas?

    <p>Brunner glands</p> Signup and view all the answers

    Which part of the small intestine has the largest surface area for luminal secretion and absorption?

    <p>Jejunum</p> Signup and view all the answers

    What is the main function of lacteal vessels in the small intestine?

    <p>Absorption of fatty acids</p> Signup and view all the answers

    Which part of the small intestine has the greatest development of gut-associated lymphoid tissue?

    <p>Ileum</p> Signup and view all the answers

    What is the main function of the ileocecal valve?

    <p>Protection against bacterial overgrowth</p> Signup and view all the answers

    Which layer of the colon wall contains diverticula?

    <p>Muscularis externa</p> Signup and view all the answers

    What is the most common symptom of diverticulitis?

    <p>Blood in the stool</p> Signup and view all the answers

    Which type of muscle is found in the upper third of the esophagus?

    <p>Skeletal muscle</p> Signup and view all the answers

    What type of epithelium is found in the lower third of the esophagus?

    <p>Stratified squamous epithelium</p> Signup and view all the answers

    What is the name of the junction where the esophagus meets the stomach?

    <p>Esophagogastric junction</p> Signup and view all the answers

    What type of epithelium is found at the esophagogastric junction?

    <p>Simple columnar epithelium</p> Signup and view all the answers

    Which type of cells are the most numerous in the colon?

    <p>Columnar (absorptive) cells</p> Signup and view all the answers

    What is the function of mucous cells in the colon?

    <p>Protection and lubrication</p> Signup and view all the answers

    What is the epithelial lining of the lower end of the anal canal?

    <p>Stratified squamous epithelium</p> Signup and view all the answers

    What marks the transition from the rectum to the anal canal?

    <p>Squamocolumnar junction</p> Signup and view all the answers

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