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Arterial Supply of the Thoracic Wall
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Arterial Supply of the Thoracic Wall

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Questions and Answers

What is the arterial supply for intercostal spaces 3-6?

  • Musculophrenic arteries from the internal thoracic arteries
  • Segmental posterior intercostal arteries directly from the thoracic aorta (correct)
  • Posterior intercostal arteries from the superior intercostal artery
  • Anterior intercostal arteries from the internal thoracic arteries
  • Which artery supplies the first and second intercostal spaces?

  • Internal thoracic artery
  • Musculophrenic artery
  • Subclavian artery
  • Superior intercostal artery (correct)
  • Where does the posterior intercostal vein of the first intercostal space drain into?

  • Internal thoracic vein
  • Brachiocephalic vein (correct)
  • Musculophrenic vein
  • Azygos system
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