List of external rotators of the human body

External rotation (or extorsion or lateral rotation) is an anatomical term of motion referring to rotation away from the center of the body. The external rotator muscles include:

Muscles

• of arm/humerus at shoulder^[1]
  • Deltoid muscle
  • Supraspinatus
  • Infraspinatus
  • Teres minor
• of thigh/femur at hip^[2]
  • Gluteus maximus
  • Lateral rotator group
    • piriformis
    • gemellus superior
    • obturator internus
    • pectineus
    • gemellus inferior
    • obturator externus
    • quadratus femoris
  • Sartorius
• of leg at knee^[3]
  • Biceps femoris
• of eyeball (motion is also called "extorsion" or excyclotorsion)^[4]
  • Inferior rectus muscle
  • Inferior oblique muscle

See also

• List of internal rotators of the human body

References

1. Shoulder Articulations
2. Hip Articulations
3. Knee Articulations
4. Extorsion at eMedicine Dictionary

External links