Subclavius muscle

Subclavius muscle
Subclavius muscle (shown in red).
Deep muscles of the chest and front of the arm, with the boundaries of the axilla. (Subclavius visible at upper left, above first rib.)
Details
OriginFirst rib and cartilage
InsertionSubclavian groove of clavicle (inferior surface of middle one third of the clavicle)
ArteryThoracoacromial trunk, clavicular branch
NerveSubclavian nerve
ActionsDepression of clavicle
elevation of first rib
Identifiers
Latinmusculus subclavius
TA98A04.4.01.007
TA22306
FMA13410
Anatomical terms of muscle

The subclavius is a small triangular muscle, placed between the clavicle and the first rib.[1] Along with the pectoralis major and pectoralis minor muscles, the subclavius muscle makes up the anterior axioappendicular muscles, also known as anterior wall of the axilla.[2]

  1. ^ "IV. Myology: 13". Gray's Anatomy: The Muscles Connecting the Upper Extremity to the Anterior and Lateral Thoracic Walls. 1918. Archived from the original on 2014-03-08.
  2. ^ Drake, Richard, et al. Gray's Anatomy For Students, Elsevier Inc., 2005