thoracic part of iliocostalis lumborum (muscle)

thoracic part of iliocostalis lumborum (muscle)

[TA]
deep back (erector spinae) muscle; origin, medial side of angles of lower six ribs; insertion, angles of upper six ribs; action, extends, abducts, and rotates thoracic vertebrae; nerve supply, dorsal branches of thoracic nerves.
Farlex Partner Medical Dictionary © Farlex 2012
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