Medical Definition of Costoscapularis
1.
Origin, from centre of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus.
Synonym: musculus serratus anterior, anterior serratus muscle, costoscapularis, musculus serratus magnus.
(05 Mar 2000)
Lexicographical Neighbors of Costoscapularis
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