RECTUS ABDOMINIS

• Origin

Pubic crest and symphysis

• Insertion

Xiphoid process and costal cartilages of ribs 5-7

• Agonist(s)

- None

• Antagonist(s)

- Erector spinae

- Quadratus lumborum

- External and Internal obliques

• Function

Flexes vertebral column; compresses abdomen