Vehicle powered for land transportation.

Vehicles powered for road transportation.

Controlled movements using muscles, coordination.

Vehicle powered for road travel.

Regulation and coordination of movement.

Nerve cell controlling muscle contractions.

Brain region controlling voluntary movements.

Neurons that control muscle activity.

Device converting electrical energy mechanically.

Movement produced by muscle contraction.

Progression of muscular coordination, skills.

Vehicles designed for road transportation.

Electric motor powered by AC.

Functional unit of muscle contraction.