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External Oblique – Essentials

Actions

• Compresses abdominal wall
• Increases intra-abdominal pressure
• Rotates trunk to opposite side
• Laterally flexes trunk

Origin

• Outer surfaces of lower eight ribs

Insertion

• Linea alba (more forming a sandwich around rectus abdominis)
• Crest and tubercle of pubic bone
• Iliac crest
• Inguinal ligament

MUSe16

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