Applied Anatomy: Stomach & Duodenum Gross Anatomy
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Questions and Answers

Which part of the stomach is defined as the portion extending from the incisura angularis to the pylorus?

  • Body (corpus)
  • Antrum (correct)
  • Cardia
  • Fundus
  • What is the function of the pylorus in the stomach?

  • It receives the esophagus (gastro-esophageal junction)
  • It behaves as a physiological and anatomical sphincter (correct)
  • It forms the upper curvature of the stomach
  • It forms the main central region of the organ
  • Where is the lesser curvature located in the stomach?

  • Forms the shorter concave border of the stomach (correct)
  • Defined as the portion of the stomach extending from the incisura angularis to the pylorus
  • At the level of L1, 2.5 cm to the right of the midline
  • Receives the esophagus (gastro-esophageal junction)
  • What is the main central region of the stomach called?

    <p>Body (corpus)</p> Signup and view all the answers

    Which orifice in the stomach acts as a physiological and anatomical sphincter?

    <p>Pyloric orifice</p> Signup and view all the answers

    What is formed by the upper curvature of the stomach and lies above the level of gastro-esophageal junction?

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

    Which anatomical notch marks the junction between the body and the antrum of the stomach?

    <p>Incisura Angularis</p> Signup and view all the answers

    What structure attaches the lesser curvature to the liver?

    <p>Lesser Omentum</p> Signup and view all the answers

    Which part of the duodenum curves in a C-shape around the head of the pancreas?

    <p>First part (duodenal cap)</p> Signup and view all the answers

    On a plain film, where is the gastric bubble often visible?

    <p>Left upper quadrant of the abdomen</p> Signup and view all the answers

    Which part of the duodenum is mostly covered by the peritoneum?

    <p>First part (duodenal cap)</p> Signup and view all the answers

    What is responsible for foreshortening the first part of the duodenum in an AP view?

    <p>Transverse Mesocolon</p> Signup and view all the answers

    Where does the third part of the duodenum pass to, after beginning at the inferior duodenal flexure?

    <p>Transversely to the left, crossing the vertebral column</p> Signup and view all the answers

    Which part of the stomach cross the midline?

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

    What structure indents the third part of the duodenum?

    <p>Superior Mesenteric Vessels</p> Signup and view all the answers

    What is responsible for visualizing all parts and features of the stomach in a barium meal?

    <p>Barium Meal</p> Signup and view all the answers

    Study Notes

    Stomach Anatomy

    • The antrum is the portion of the stomach extending from the incisura angularis to the pylorus.
    • The pylorus functions as a physiological and anatomical sphincter in the stomach.
    • The lesser curvature is located on the anterior surface of the stomach.
    • The main central region of the stomach is called the body.

    Stomach Features

    • The fundus is formed by the upper curvature of the stomach and lies above the level of the gastro-esophageal junction.
    • The incisura angularis is an anatomical notch that marks the junction between the body and the antrum of the stomach.

    Stomach Attachments

    • The lesser omentum attaches the lesser curvature to the liver.

    Duodenum Anatomy

    • The second part of the duodenum curves in a C-shape around the head of the pancreas.
    • On a plain film, the gastric bubble is often visible in the upper left quadrant of the abdomen.
    • The second and third parts of the duodenum are mostly covered by the peritoneum.

    Duodenum Features

    • The head of the pancreas is responsible for foreshortening the first part of the duodenum in an AP view.
    • The third part of the duodenum passes to the left of the aorta after beginning at the inferior duodenal flexure.
    • The pylorus is the part of the stomach that crosses the midline.

    Duodenum Relations

    • The superior mesenteric artery indents the third part of the duodenum.
    • A barium meal is responsible for visualizing all parts and features of the stomach.

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    Description

    Test your knowledge about the gross anatomy of the stomach and duodenum, including the structure, orifices, and variations in size and shape. Explore the details about the J-shaped structure and the associated accessory organs.

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