| Term 
 
        | What is the inferior border of the superior mediastinum? |  | Definition 
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        | Term 
 | Definition 
 
        | Trachea bifurcates at this level, and the arch of azygos vein and the aortic arch cross over the roots of the lungs. |  | 
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        | Term 
 
        | What is the major and minor fissure? |  | Definition 
 
        | Major fissure is oblique.  Minor fissure is horizontal.  Minor fissure present only on rt lung. |  | 
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        | Term 
 
        | Which lobes of lung lie most anteriorly, especially when you see them on CT? |  | Definition 
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        | Term 
 
        | Where would the costomediastinal recess be seen? |  | Definition 
 
        | Close to sternum, particularly noticeable on left lung because of cardiac notch |  | 
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        | Term 
 
        | What is more posterior, left atrium or right atrium? |  | Definition 
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        | Term 
 
        | Which is lower right kidney or left kidney? |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | What's special about different intestinal parts on a small bowel follow through? |  | Definition 
 
        | jejunum has obvious plicae circulares.  Ileum is smoother.  Duodenum is most smooth. |  | 
        |  | 
        
        | Term 
 
        | On an xray, how can you tell the difference between thoracic and lumbar vertebrae? |  | Definition 
 
        | The lumbar has no ribs attached. |  | 
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        | Term 
 
        | As you get lower and lower, what part of the pancreas will you be able to see? |  | Definition 
 
        | the head and uncinate process |  | 
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