Latissimus Dorsi – Essentials

Action

• Extends glenohumeral joint
• Medial rotates glenohumeral joint
• Horizontally abducts glenohumeral joint
• Adducts glenohumeral joint
• Depresses scapula

Origin

• Posterior iliac crest
• Sacrum
• SP T6 to T12, L1 to L5
• Lower three to four ribs
• Inferior angle of scapula
• Lumbardorsal fascia

Insertion

Medial lip of bicipital groove of humerus

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