Internal Rotation

In anatomy, internal rotation (also known as medial rotation) is rotation towards the center of the body.

The muscles of internal rotation include:

  • of arm/humerus at shoulder
    • Deltoid muscle
    • Subscapularis
    • Teres major
    • Latissimus dorsi
    • Pectoralis major
  • of thigh/femur at hip
    • Tensor fasciae latae
    • Gluteus medius
    • Gluteus minimus
  • of leg at knee
    • Popliteus
    • Semimembranosus
    • Semitendinosus
  • of eyeball (motion is also called "intorsion" or incyclotorsion)
    • Superior rectus muscle
    • Superior oblique muscle

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    The lazy manage to keep up with the earth’s rotation just as well as the industrious.
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