Which description best defines quadriplegia?

• A. Loss of movement in both legs.
• B. Loss of movement in one arm.
• C. Loss of movement in the chest.
• D. Loss of movement in all four limbs.

Answer: (D)

Quadriplegia means paralysis of all four limbs. That description matches best because it specifies loss of movement in both arms and both legs. If only the legs are affected, that’s paraplegia; if only one arm is affected, that’s hemiplegia (or monoplegia). Loss of movement in the chest would indicate trunk involvement but doesn’t describe four-limb paralysis. So four-limb loss is the defining feature here.