The latissimus dorsi is a wide, flat triangular muscle located on the lower half of the back. It is the broadest of the back muscles. It originates along the lumbar and lower half of the thoracic vertebrae and the iliac crest and sacrum far below. The muscle fibres at its tip insert under the scapula and join to the humerus in the shoulder. The latissimus dorsi is innervated by the thorocodorsal nerve and supplied by the thorocodorsal artery. This muscle gives the arms motion. It is used when swimming or when swinging the arms back when jogging. It is also used to reach up to grab something above the head. Research Latissimus Dorsi
Abbreviations
Medicine
Research Latissimus Dorsi