Which statement best defines paralysis?

• A. Temporary weakness
• B. Complete loss of movement in a limb or region
• C. Only sensory loss
• D. Increase in muscle mass

Answer: (B)

Paralysis means a complete loss of movement in a limb or region due to disruption of the nerves or spinal pathways that control the muscles. That defining feature—no voluntary movement in the affected area—makes the statement describing a total inability to move the part the best fit. It’s distinct from weakness, which is a reduction in strength but still allows some movement. Sensory loss refers to feeling, not movement, and can occur separately or alongside paralysis but does not define it. An increase in muscle mass is unrelated to paralysis, as it reflects muscle growth rather than loss of movement. Paralysis can be temporary or permanent depending on the underlying cause.