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USMLE Step 1 Buzzwords Buzzwords that should ring a bell in USMLE Step 1 exam.

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Old 11-01-2009
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Anatomy Sternal Angle

One of the commonest anatomy questions in USMLE Step 1 is relations to the sternal angle.

Whenever, you see the sternal angle in a question this should immediately bring the following to your mind:

  • Level of second rib, second costal cartilage. Therefore, we use it as a landmark to count the ribs and intercostal spaces clinically.
  • It's cross sectional will go posteriorly to meet the T4/T5 Intervertebral Disc.
  • It marks the entry and exit of the aortic arch to and from the superior mediastinum.
  • It marks the bifurcation of the trachea.
  • It is the landmark by which we divide the mediastinum into superior and inferior divisions.
  • Azygous vein entry into the superior vena cava.
  • Fusion of the right and left mediastinal pleurae in the midline anteriorly.
Have you got more clues, post your reply and I'll add them ...
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The above post was thanked by:
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