Abdominal Wall Muscles

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External Oblique

Superficial lateralmuscle with fibers at an angle; compress abdomen; lateral flexion

Rectus Abdominus

Under connective tissue of external oblique; extends from sternum and ribs to pubic symphysis; compress abdomen flexion of vertebral column

Internal Oblique

Middle muscle layer of lateral abdomen; fibers are at an angle; compress abdomen; lateral flexion of vertebral column

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