"origin: lateral surface of 1st to 8th or 9th ribs"
"insertion: medial border of the scapula"
"innervation: long thoracic nerve"
"action:"
"origin: lateral surface of 1st to 8th or 9th ribs"
"insertion: medial border of the scapula"
"innervation: long thoracic nerve"
"action:"
Expected headings
"Variations"