title: Externally powered artificial arms.
mesh_terms: D001132:Arm / Q000502:physiology; D001186:Artificial Limbs; D002490:Central Nervous System / Q000502:physiology; D002648:Child; D006801:Humans; D007699:Kinesthesis; D008433:Mathematics; D009068:Movement; D013026:Space Flight; D013672:Technology