Quadratus lumborum — Free Anatomy Illustration | GPAI | GPAI

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Quadratus lumborum — Free Anatomy Illustration | GPAI | GPAI

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Quadratus lumborum

Quadratus lumborum

Anatomy

Quadratus lumborum

Flat quadrilateral posterior abdominal wall muscle shown as a broad rectangular to slightly tapered sheet, reddish-brown to deep red or pink-red in color, with a thick sturdy appearance and clean straight margins. Muscle fibers and short striations run mostly vertically, with slight obliquity in places. The form is broad inferiorly and somewhat narrower superiorly, appearing flatter and shorter than psoas major.

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PNG

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