In addition, any condition causing weakness of the serratus anterior muscle may cause scapular "winging".

It is musculotendinous in nature and is formed predominantly by the trapezius, rhomboids and serratus anterior muscles.

It runs with the lateral thoracic artery and drains the Serratus anterior muscle and the Pectoralis major muscle.

The rest of the movement is mainly due to contraction of Trapezius muscle pars acendens, Serratus anterior muscle and trapezius pars decendens.

The uplifted right arm allows the artist to explore the patterned tensions of the serratus anterior muscles, and the gesture and the angle of the head suggest that the génie is warding off "divine chastisement."

The five superior serrations increase in size from above downward, and are received between corresponding processes of the serratus anterior muscle; the three lower ones diminish in size from above downward and receive between them corresponding processes from the latissimus dorsi.

The serratus anterior muscle attaches to the medial anterior aspect of the scapula (i.e. it attaches on the side closest to the spine and runs along the side of the scapula that faces the ribcage) and normally anchor the scapula against the rib cage.

It originates from the axillary artery and follows the lower border of the Pectoralis minor muscle to the side of the chest, supplies the Serratus anterior muscle and the Pectoralis major muscle, and sends branches across the axilla to the axillary lymph nodes and Subscapularis muscle.