USMLE Step 1 Review 03 05 Anatomy Stomach 1

USMLE Step 1 Review 03 05 Anatomy Stomach 1


On these “Gold Standard Step 1 Facts” pages you will find Free:

  • USMLE Audio Review files from our “Gold Standard USMLE Reviews”
  • Transcriptions of those files
  • And videos (as they become available)

The idea is that you can review for the USMLE online by:

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  • Following along with the transcription
  • Or by watching the video (if available)

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Let’s continue our USMLE Review with Anatomy from the Gold Standard USMLE Step 1 Audio Review program.

Play USMLE Audio MP3 03 05 Anatomy Stomach 1 Below


Begin 03 05 Anatomy Stomach 1 Transcription

All right, let’s move on to the stomach.

When the food in the stomach is broken down into a paste by the action of the stomach, what is that called? Chyme. What are the three main components of the gastric juice?

  • Pepsinogen, hydrochloric acid and mucin.

What is the portion of the stomach that is a continuation of the orifice of the esophagus?

  • The cardiac portion.

There is a dome of stomach that rises on the left up above the level of the cardiac portion, what is that called?

  • The cupola of the fundus.

How is the cupola of the fundus normally visualized on an x-ray?

  • An air bubble, a curved on the top half and flat on the bottom, especially if the stomach is full.

Between the cupola of the fundus and the esophagus there is a notch on top, what is that called? The cardiac notch. And there’s a corresponding ridge inside the stomach, and what is that called?

  • The pleca cardiaca.

And what is the main part of the stomach extending down, curving slightly to the right from the cupola and the cardiac portions?

  • The body of the stomach.

The body of the stomach has a convexity on one side and a concavity on the other, on which side is the convexity? On the left, and what is this curve called?

  • The greater curvature of the stomach.

On which side is the concavity?

  • On the right.

And what is this called?

  • The lesser curvature of the stomach.

At the bottom of the concavity or lesser curvature on the right is an indentation, what is this called?

The angular notch.

And correspondingly inside the stomach, what is the ridge that is formed by that angular notch?

  • The pleca angularis.

And what does the pleca angularis separate?

  • The body of the stomach and the pyloric region to the right of the pleca angularis.

Going back to the convexity, the greater curvature of the stomach, where does the  greater curvature of the stomach have its most acute angle?

  • At the bottom just opposite the angular notch.

Again, what is the area of the stomach to the right of the pleca angularis?

  • The pylorus of the stomach.

Now going to the right the first part of the pylorus is dilated forming what structure?

  • The antrum pyloricum.

The pylorus ends on the right with what structure?

  • The pyloric sphincter.

And which part of the GI track immediately follows the pyloric sphincter?

  • The duodenum.



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