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Which ONE of the following statements about the lesser omentum is CORRECT?Group of answer choicesIt attaches to the greater curvature of the stomachIt delineates the bare area of the liverThe falciform ligament runs in its free inferior edgeIt forms the posterior boundary of the omental bursa (lesser sac)The portal triad runs in its free edge

Question

Which ONE of the following statements about the lesser omentum is CORRECT?Group of answer choicesIt attaches to the greater curvature of the stomachIt delineates the bare area of the liverThe falciform ligament runs in its free inferior edgeIt forms the posterior boundary of the omental bursa (lesser sac)The portal triad runs in its free edge

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Solution

The correct answer is: The portal triad runs in its free edge.

Here's the step-by-step explanation:

The lesser omentum is a double layer of peritoneum that extends from the liver to the lesser curvature of the stomach and the first part of the duodenum. It has two parts: the hepatogastric ligament and the hepatoduodenal ligament.

The portal triad, which consists of the hepatic artery proper, portal vein, and common bile duct, runs within the free edge of the hepatoduodenal ligament, which is part of the lesser omentum.

The other statements are incorrect:

  • The lesser omentum does not attach to the greater curvature of the stomach; that's where the greater omentum attaches.
  • The lesser omentum does not delineate the bare area of the liver; the coronary ligament does this.
  • The falciform ligament does not run in the free inferior edge of the lesser omentum; it is a separate structure that attaches the liver to the anterior abdominal wall and diaphragm.
  • The lesser omentum does not form the posterior boundary of the omental bursa (lesser sac); it forms the anterior boundary. The posterior boundary is formed by the posterior abdominal wall and pancreas.

This problem has been solved

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