| A | B |
|---|
| joint | where two bones interact |
| synarthroses | immovable joint |
| articulation | another name for joints |
| amphiarthroses | slightly movable joints |
| diarthroses | freely movable joints |
| flexion | angular, movement in the anterior-posterior plane that reduces the angle between articulating elements |
| extension | angular, movement in the anterior-posterior plane that increases the angle between articulating surfaces |
| abduction | angular, movement away from the longitudinal axis of the body |
| adduction | angular, movment towards the longitudinal axis of the body |
| circumduction | angular, circular motion |
| rotation | turning around the longitudinal axis of the body or a limb |
| pronation | rotational movement involving rotating the wrist and hand from palm-facing-front to palm-facing-back |
| supination | rotational movement involving rotating the wrist and hand from palm-facing-back to palm-facing-front |
| inversion | a twisting motion of the foot that turns the sole inward, elevating the medial edge of foot |
| eversion | a twisting motion of the foot that rotates the sole outward |
| dorsiflexion | a flexion of the ankle joint and elevation of the sole, as when you dig in your heel |
| plantarflexion | extention of the ankle joint and elevate the heel as if ou were standing on tip toe |
| protraction | when you move part of your body anteriorly in the horizontal plane |
| retraction | when you move part of your body posteriorly in the horizontal plane |
| opposition | the movement of the thumb toward the palm or fingertips |
| elevation and depression | occur when a structure moves in a superior or inferior direction, respectively |
