Contents
Anatomy
General information
- This section is strictly limited to anatomy, you might be looking for clinical relevant information which is found under the clinical chapters -- muscles section, click here to go to that page
- The muscle is often of less importance because it is only present in about 40% of the population
- The muscle does not cross the hip joint, so the movements is not as noticable as the more functional psoas major
- The muscle tenses the iliaca fascia
Position
- Deep
Origin
- Vertebral bodies of Th12-L1
- Anterolaterally along the medial sideof the body
- The accompanying intervertebral discs
Insertion
- Fascia iliaca
- Iliopectinal eminence
Main function
- Trunk
- Flexion
- Pelvis
- Posterior tilt
Nerve innervation
- Segmental
- L1
- Peripheral
- L1 spinal nerve
Arterial supply
- Lumbar artery