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
Famous quotes containing the words internal and/or rotation:
“The internal effects of a mutable policy ... poisons the blessings of liberty itself.”
—James Madison (1751–1836)
“The lazy manage to keep up with the earth’s rotation just as well as the industrious.”
—Mason Cooley (b. 1927)