Superior thoracic aperture

Dr Henry Knipe et al.

The superior thoracic aperture, also known as the thoracic inlet or outlet, connects the root of the neck with the thorax

Gross anatomy

The superior thoracic aperture is kidney-shaped and lies in an oblique transverse plane, tilted anteroinferiorly to posterosuperiorly. 

Boundaries
  • posteriorly: T1 vertebral body and costovertebral joints
  • laterally: first ribs and their costal cartilages
  • anteriorly: superior border of the manubrium
Contents

The list of structures that pass through the superior thoracic outlet is long. Included below are the major structures: 

Related pathology


Thoracic anatomy
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Article Information

rID: 27618
Section: Anatomy
Synonyms or Alternate Spellings:
  • Thoracic inlet
  • Thoracic outlet

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