Scapular protraction
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At the time the article was created Edward Zhou had no recorded disclosures.
View Edward Zhou's current disclosuresAt the time the article was last revised Edward Zhou had no recorded disclosures.
View Edward Zhou's current disclosures- Scapula protraction
- Scapula abduction
- Abduction of the scpaula
- Protraction of the scapula
Scapular protraction describes the forward movement of the scapula about the thoracic wall (scapulothoracic joint). As the scapula moves away from the midline it can also be referred to as scapular abduction. This motion usually occurs in conjunction with some scapular lateral rotation. This movement is made possible also by forward movement of the clavicle and the acromion at the acromioclavicular joint. The opposite movement is scapular retraction.
The muscles that primarily perform this action are serratus anterior and pectoralis minor, and these also maintain scapular apposition against the thoracic wall.
Other muscles act to stabilise the scapula during protraction. The pectoralis major stabilises protraction by preventing excessive motion of the sternal end of the clavicle. Rhomboid major and minor control the rate and range of scapular protraction 1,2.
References
- 1. Susan Standring. Gray's Anatomy. (2020) ISBN: 9780702077050 - Google Books
- 2. Keith L. Moore, Arthur F. Dalley, A. M. R. Agur. Clinically Oriented Anatomy. (2013) ISBN: 9781451119459 - Google Books
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