Subclavius muscle

Last revised by Wilson Tao on 24 Jun 2024

Citation, DOI, disclosures and article data

Citation:

Knipe H, Tao W, Yu Y, et al. Subclavius muscle. Reference article, Radiopaedia.org (Accessed on 28 Jun 2024) https://doi.org/10.53347/rID-23256

DOI:

https://doi.org/10.53347/rID-23256

Permalink:

https://radiopaedia.org/articles/23256?iframe=true

rID:

23256

Article created:

1 Jun 2013, Henry Knipe ◉

Disclosures:

At the time the article was created Henry Knipe had no recorded disclosures.

Last revised:

24 Jun 2024, Wilson Tao

Disclosures:

At the time the article was last revised Wilson Tao had no financial relationships to ineligible companies to disclose.

Revisions:

12 times, by 9 contributors - see full revision history and disclosures

Systems:

Musculoskeletal

Sections:

Anatomy

Tags:

muscle, muscle-stub, refs, cases, illustrations

Synonyms:

The subclavius muscle is a small triangular muscle of the pectoral region which depresses the shoulder.

origin: 1^st costochondral joint
insertion: subclavian groove on the inferior aspect of the middle third of the clavicle
innervation: nerve to subclavius (from nerve roots C5-C6)
arterial supply: clavicular branch of the thoracoacromial artery and the suprascapular artery
action: depresses clavicle
- an additional function is to protect the brachial plexus and subclavian vessels from injury should the clavicle fracture

Insertion to the coracoid process or the upper border of the scapula in addition to, or instead of, the clavicle.