Subclavius posticus muscle

Last revised by Daniel J Bell on 22 Aug 2019

Subclavius posticus muscle is an accessory muscle in the root of the neck, lying between the subclavius muscle and the inferior belly of omohyoid. It has an incidence of ~ 7.5% 2,4.

  • origin: first costal cartilage
  • insertion: superior margin of scapula
  • nerve supply: nerve to subclavius or suprascapular nerve

Subclavius posticus may be associated with:

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