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:
“I believe that there was a great age, a great epoch when man did not make war: previous to 2000 B.C. Then the self had not really become aware of itself, it had not separated itself off, the spirit was not yet born, so there was no internal conflict, and hence no permanent external conflict.”
—D.H. (David Herbert)
“The lazy manage to keep up with the earth’s rotation just as well as the industrious.”
—Mason Cooley (b. 1927)