Subclavius

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Original Author(s): Oliver Jones
Last updated: October 7, 2022
Revisions: 4

Original Author(s): Oliver Jones
Last updated: October 7, 2022
Revisions: 4

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The subclavius is a muscle of the anterior chest wall. It is small muscle, located directly underneath the clavicle.

  • Attachments: Originates from the junction of the 1st rib and its costal cartilage. Inserts onto the inferior surface of the middle third of the clavicle.
  • Function: Anchors and depresses the clavicle.
  • Innervation: Nerve to subclavius.
  • Blood supply: Clavicular branch of thoracoacromial artery.

Fig 1 – The subclavius muscle of the anterior chest wall.