Anatomy of the Digestive System
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Questions and Answers

What is the primary source of pepsin in gastric juice?

  • Parietal cells
  • Lymphocytes
  • Chief cells (correct)
  • Enteroendocrine cells

What is the function of intrinsic factor in gastric juice?

  • To break down proteins into peptides
  • To regulate the pH of the stomach
  • To stimulate the release of gastrin
  • To bind to vitamin B12 (correct)

Which type of cell is responsible for producing gastrin and other hormones?

  • Parietal cells
  • Enteroendocrine cells (correct)
  • Lymphocytes
  • Chief cells

What is the main function of the vagus nerve in regulating gastric secretion?

<p>To stimulate the release of hydrochloric acid (A)</p> Signup and view all the answers

What is the primary location of lymphoid cells and nodules in the stomach?

<p>In the lamina propria (A)</p> Signup and view all the answers

What is the function of smooth muscle fibers in the stomach?

<p>To contract and mix food with gastric juice (A)</p> Signup and view all the answers

What is the primary component of gastric juice that breaks down proteins?

<p>Pepsin (C)</p> Signup and view all the answers

What is the primary function of the lamina propria in the stomach?

<p>To house lymphoid cells and nodules (C)</p> Signup and view all the answers

What is the primary hormone that regulates the release of hydrochloric acid in gastric juice?

<p>Gastrin (B)</p> Signup and view all the answers

What is the primary function of parietal cells in the stomach?

<p>To produce hydrochloric acid (B)</p> Signup and view all the answers

Flashcards

Source of pepsin?

Chief cells

Intrinsic factor function?

To bind to vitamin B12

Gastrin source?

Enteroendocrine cells

Vagus nerve's role?

To stimulate the release of hydrochloric acid

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Where are lymphoid cells?

In the lamina propria

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Smooth muscle role?

To contract and mix food with gastric juice

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Breaks down proteins?

Pepsin

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Lamina propria function?

To house lymphoid cells and nodules

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Regulates Hydrochloric acid release?

Gastrin

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Parietal cells function?

To produce hydrochloric acid

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