Podcast
Questions and Answers
Which part of the stomach is defined as the portion extending from the incisura angularis to the pylorus?
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?
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?
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?
What is the main central region of the stomach called?
Which orifice in the stomach acts as a physiological and anatomical sphincter?
Which orifice in the stomach acts as a physiological and anatomical sphincter?
What is formed by the upper curvature of the stomach and lies above the level of gastro-esophageal junction?
What is formed by the upper curvature of the stomach and lies above the level of gastro-esophageal junction?
Which anatomical notch marks the junction between the body and the antrum of the stomach?
Which anatomical notch marks the junction between the body and the antrum of the stomach?
What structure attaches the lesser curvature to the liver?
What structure attaches the lesser curvature to the liver?
Which part of the duodenum curves in a C-shape around the head of the pancreas?
Which part of the duodenum curves in a C-shape around the head of the pancreas?
On a plain film, where is the gastric bubble often visible?
On a plain film, where is the gastric bubble often visible?
Which part of the duodenum is mostly covered by the peritoneum?
Which part of the duodenum is mostly covered by the peritoneum?
What is responsible for foreshortening the first part of the duodenum in an AP view?
What is responsible for foreshortening the first part of the duodenum in an AP view?
Where does the third part of the duodenum pass to, after beginning at the inferior duodenal flexure?
Where does the third part of the duodenum pass to, after beginning at the inferior duodenal flexure?
Which part of the stomach cross the midline?
Which part of the stomach cross the midline?
What structure indents the third part of the duodenum?
What structure indents the third part of the duodenum?
What is responsible for visualizing all parts and features of the stomach in a barium meal?
What is responsible for visualizing all parts and features of the stomach in a barium meal?
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.
