LATISSIMUS DORSI

Latissimus Dorsi muscle

Origin of Latissimus Dorsi

Spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, iliac crest, and inferior 3 or 4 ribs.

Insertion of Latissimus Dorsi

Floor of intertubercular groove of humerus.

Muscle Action/Function of Latissimus Dorsi

Extends, adducts, and medially rotates humerus; raises body toward arms during climbing.

Arterial (Blood) Supply of Latissimus Dorsi

Thoracodorsal artery.

Latissimus Dorsi Video

Latissimus Dorsi muscle

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