Lumbar Muscle Anatomy. Supports weight of trunk. Lacks facets for rib articulation.
Your quadratus lumborum or QL is the deepest back muscle and originates from your iliac crest and insert on the transverse process of lumbar one through five and the lower part of your twelfth rib. Lacks facets for rib articulation. Your lumbar spine supports the weight of your body and allows a wide range of body movements.
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Your lumbar spine is the lower back region of your spinal column or backbone. Be Free From Back Ache Today. Shaw House Orchard Road. Your quadratus lumborum or QL is the deepest back muscle and originates from your iliac crest and insert on the transverse process of lumbar one through five and the lower part of your twelfth rib.