left serratus anterior

In 2 atlases

muscle on the surface of the ribs

Source: Wikidata · Licence: CC0-1.0

Description from Wikidata (https://www.wikidata.org/), available under CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/).

Origin: left first rib, left second rib, left third rib, left fourth rib, left fifth rib, left sixth rib, left seventh rib, left eighth rib, left ninth rib
Insertion: medial border proper of scapula
Action: lateral rotation of the pectoral girdle, protraction of the pectoral girdle
Innervation: left long thoracic nerve
Arterial supply: left lateral thoracic artery, left thoracodorsal artery, superior thoracic artery
Venous drainage: left lateral thoracic vein, set of thoraco-epigastric veins

The 3D model shows 8 origin and insertion areas of this muscle.