Internal rotation refers to the rotation towards the axis of the body. External rotation refers to the rotation away from the center of the body.
*engagement *descent *flexion *internal rotation *extension *external rotation *expulsion
Internal rotation happens after flexion of the fetal head during labor. The fetus will turn its head either to look straight up or down.
Subscapularis
Internal rotation of the shoulder
rotation of the earth's core
Sanichiro Mizushima has written: 'Structure of molecules and internal rotation' -- subject(s): Molecules, Optical rotation
internal rotation
Translation Energy Rotation Energy Vibration Energy
flexion, extension, abduction, adduction, hoizontal abduction/extention, internal rotation, external rotation, circumduction, adduction/flexion
pectoralis major latissimus dorsi teres major subscapularis
The rotation of a cloud of interstellar dust and gas helps contract the mass into a star.
Different internal combustion engines have different rotational speeds.