Edit page | Page history | Printable version

Latissimus dorsi

(Science: anatomy, muscle) origin, spinous processes of lower five or six thoracic and the lumbar vertebrae, median ridge of sacrum, and outer lip of iliac crest; insertion, with teres major into posterior lip of bicipital groove of humerus; action, adducts arm, rotates it medially, and extends it; nerve supply, thoracodorsal.

Synonym: musculus latissimus dorsi, broadest muscle of back.