Latissimus Dorsi anatomy.pdf

Functional Anatomy

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Functional Anatomy

Latissimus Dorsi

Origin

Spinous process of the 7th through 12th

thoracic vertebrae, last three or four ribs,

thoracolumbar fascia, posterior 1/3 of the

external lip of the iliac crest, inferior angle

of the scapula

Insertion

floor of the intertubercular groove of the

humerus

Actions

With the origin fixed, internally (medially)

rotates, adducts, and extends the

glenohumeral joint. Continued action will

assist in scapular depression and

downward rotation and lateral trunk

flexion.

With the insertion fixed, assists in tilting

the pelvis anteriorly and laterally.

Acting bilaterally, assists in spine

extension, and anteriorly tilting the pelvis.

Nerve

Thoracodorsal nerve

0005-GH-TR Latissimus Dorsi

http://www.kinesiotex.com/portal/systems/KinesioWebsite/jsp/functional_enGB_5.kin

2007-12-14