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Sternal angle

-manubriosternal joint

-anterior angle formed by junction of manubrium and body of sternum

-approximately 140 degree

significant because:

  • it lies just anterior to arch of aorta -marks the starting and ending of the aortic arch
  • anterior to the Corina (point of bifurcation of trachea into 2 main bronchi)
  • It corresponds to the invertebral disc between T4 and T5 vertebra
  • at the level of second pair of coastal cartilage
  • mark superior boundary of inferior mediastinum
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12y ago
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Q: What is the clinical significance of the sternal angle?
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