Taras Shevchenko

Part of a series of lists about
Human anatomy
General Features Regions Variations Movements Systems
Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins
Muscles Abductors Adductors Depressors Elevators Extensors Flexors Rotators external internal
See also Glossary of medicine Epithelia Anatomical terminology Index of anatomy articles Outline of human anatomy Cell types by origin

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:

• 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

• List of internal rotators of the human body