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Human anatomy
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In anatomy, internal rotation (also known as medial rotation) is an anatomical term referring to rotation towards the center of the body.

Muscles

The muscles of internal rotation include:

• of arm/humerus at shoulder
  • Anterior part of the deltoid muscle^[1]
  • Subscapularis^[1]
  • Teres major^[1]
  • Latissimus dorsi^[1]
  • Pectoralis major^[1]
• of thigh/femur at hip^[2]
  • Tensor fasciae latae
  • Gluteus minimus
  • Anterior fibers of Gluteus medius
  • Adductor longus and Adductor brevis
• of leg at knee^[3]
  • Popliteus
  • Semimembranosus
  • Semitendinosus
  • Sartorius
• of eyeball (motion is also called "intorsion" or incyclotorsion)^[4]
  • Superior rectus muscle
  • Superior oblique muscle