Which term is a plane of motion?

Which term is a plane of motion?

• A. Circular
• B. Linear
• C. Elliptical
• D. Frontal

Answer: (D)

Planes of motion are imaginary surfaces through which joints move, and movement is classified by the plane it occurs in. The frontal plane runs from side to side, dividing the body into front and back parts, and movements that occur in this plane include abduction and adduction of the arms or legs. The term that names this plane is frontal, which is why it’s the correct choice. The other terms describe the path a movement can take (circular or elliptical) or a straight-line path (linear), not a plane, so they don’t designate a plane of motion.

Planes of motion are imaginary surfaces through which joints move, and movement is classified by the plane it occurs in. The frontal plane runs from side to side, dividing the body into front and back parts, and movements that occur in this plane include abduction and adduction of the arms or legs. The term that names this plane is frontal, which is why it’s the correct choice. The other terms describe the path a movement can take (circular or elliptical) or a straight-line path (linear), not a plane, so they don’t designate a plane of motion.