Iliopsoas
Hip flexors · Hips & glutes
- Origin
- Psoas major: bodies of T12 to L4 and transverse processes of L1 to L5; iliacus: iliac fossa
- Insertion
- Lesser trochanter of the femur
- Action
- Flexes the hip and the trunk
The main hip flexor, made of the psoas major and iliacus. It lifts the knee toward the chest in leg raises and sprinting. Use X-ray mode to see it behind the abdominal wall.