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Definition of Serratus anterior

Serratus anterior: One of the serratus muscles of the back and thorax. The serrautus anterior originates from the lateral aspect (the side) of first eight to nine ribs and inserts into the medial margin of the scapula (wing bone). The serratus anterior rotates the scapula and pulls it forward and elevates ribs.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=40393
Last Editorial Review: 6/14/2012

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