- Click here for access to the full Anatomy Glossary.
- Right click on the image for a downloadable file of this muscle.
- Use of this artwork requires proper credit to be given (Permission: Dr. Joe Muscolino. www.learnmuscles.com – art work Giovanni Rimasti)
The Quadratus Femoris is a member of the Deep Lateral Rotator Group (also known as the Deep 6), composed of the following six muscles (from superior to inferior):
- Piriformis
- Superior gemellus
- Obturator internus
- Inferior gemellus
- Obturator externus
- Quadratus femoris
ATTACHMENTS:
- The quadratus femoris attaches from the ischial tuberosity to the intertrochanteric crest of the femur.
ACTIONS:
- Laterally rotates the thigh at the hip joint.
- Horizontally abducts the thigh at the hip joint.
- Adducts the thigh at the hip joint.
- Contralaterally rotates the pelvis at the hip joint.
NOTE: The quadratus femoris is usually the largest member of the deep lateral rotator group.
