Quadratus lumborum - Musculus quadratus lumborum

Anatomical hierarchy

General terms > Myology > Muscles of abdomen > Quadratus lumborum



Origin: Bodies of the last three thoracic vertebrae to the transverse processes of the lumbar vertebrae as far as the seventh lumbar vertebra.

Insertion: Medial surface of the wing of the ilium between the articular surface and the caudal ventral iliac spine.

Action: Fixation of the lumbar vertebral column.

Nerve: Rami of the ventral branches of the lumbar nerves.

Text by Antoine Micheau, MD - Copyright IMAIOS


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