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erector spinae


'erector spinae' can also refer to...

 

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A massive group of back muscles that are prime movers of extension, lateral flexion, and rotation of the spine. The erector spinae consist of three columns: the iliocostalis, longissimus, and spinalis muscles. These muscles resist forward bending at the waist and act as powerful extensors to raise the trunk from a flexed position to an upright position; they also help a person to maintain an upright stance.

Subjects: Sports and Exercise Medicine.


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