The abdominal external oblique muscle (also external oblique muscle or exterior oblique or musculus obliquus abdominis externus) is the largest and outermost of the three flat abdominal muscles of the lateral anterior abdomen.

Structure

The external oblique is situated on the lateral and anterior parts of the abdomen. It is broad, thin, and irregularly quadrilateral, its muscular portion occupying the side, its aponeurosis

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