Transverse Abdominis – Essentials

Action

• Compresses abdominal contents

Origin

• Lateral 1/3 of inguinal ligament
• Lumbardorsal fascia
• Anterior 2/3 of iliac crest
• Cartilage of ribs 7 to 12

Insertion

• Linea alba
• Pubic crest and pectineal line
• Abdominal aponeurosis

MUSt13