Abdomen
Rectus abdominis
Flexes the trunk. compresses abdominal contents. and assists control of pelvic position
- Origin
- Pubic crest and pubic symphysis
- Insertion
- Xiphoid process and costal cartilages of ribs five through seven
- Primary actions
- Flexes the trunk. compresses abdominal contents. and assists control of pelvic position
Anatomy reference
OpenStax Anatomy and Physiology 2e — Axial Muscles of the Abdominal Wall and Thorax
Open referenceEducational anatomy reference only. This page does not diagnose pain, injury, or movement limitations.
From anatomy to action
Explore the movement, not just the muscle.
A single muscle rarely explains a movement by itself. Use the related movement content to see how this anatomy may contribute, then choose a focused program when you want a complete progression.
Corrective movement strategies and exercises
Capacity focus
Excessive Anterior Pelvic Tilt
Explore pelvic and trunk-control options without treating pelvic angle as a diagnosis or forcing a neutral position.
Open corrective movement strategy
Mobility focus
Excessive Posterior Pelvic Tilt
Explore comfortable pelvic, hip, and trunk movement without forcing the low back into one preferred curve.
Open corrective movement strategy
Capacity focus
Rib Flare
Explore breathing, trunk, and reaching options without forcing the ribs into a fixed position.
Open corrective movement strategy