Rectus Abdominis

Other Names

• Waist (Belly)
• Abdominal
• Abs

Heads

• Rectus Abdominis

Movement

Spine (Lumbar)

• Flexion

Attachments

Origin

• Pubis
  • Crest

Insertion

• Ribs (5th, 6th, & 7th)
  • Cartridge
• Xiphoid Process

Related Muscles

• Obliques

Comments

Rectus abdominis controls the tilt of the pelvis and curvature of the lower spine. It also tilts pelvis forward improving the mechanical positioning of the erector spinae. See abdominal weakness.