Medical Dictionary

latissimus dorsi

noun la·tis·si·mus dor·si \lə-ˈtis-ə-məs-ˈdr-ˌsī\
plural la·tis·si·mi dorsi \-ˌmī-\

Definition of LATISSIMUS DORSI

:  a broad flat superficial muscle of the lower part of the back that originates mostly in a broad aponeurosis attached to the spinous processes of the vertebrae of the lower back, the supraspinal ligament, and the crest of the ilium, that is inserted into the bicipital groove of the humerus, and that extends, adducts, and rotates the arm medially and draws the shoulder downward and backward

Illustration of LATISSIMUS DORSI

March 29, 2015
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