Scalenus pleuraris muscle

Dr Henry Knipe et al.

The scalenus pleuraris muscle is an anatomical variant, being an accessory/supernumerary scalene muscle. 


  • origin: anterior tubercle of C7
  • insertion: suprapleural membrane; inner border of first rib

Related pathology

Head and neck anatomy
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Article information

rID: 35646
Section: Anatomy
Tag: cases
Synonyms or Alternate Spellings:
  • Sibson's muscle

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