flexion
bending movement that decreases the angle between body parts
extension
a straightening movement that increases the angle between body parts
abduction
movement of a body part, usually a limb, away from the sagittal plane
adduction
movement of a body part, usually a limb, toward the sagittal plane
circumduction
a combination of abduction and adduction, as well as flexion and extension, that results in appendages being moved in a cone-shaped path
rotation
motion that occurs as one body part turns on an axis
opposition
motion in which body parts are brought together