What term is used to refer to involvement or weakness of primarily the lower extremities?

• A. Quadriplegia
• B. Paraplegia
• C. Hemiplegia
• D. Monoplegia

Answer: (B)

The term that refers to involvement or weakness primarily in the lower extremities is paraplegia. This condition typically results from an injury or trauma to the spinal cord that alters the function of the lower body, affecting the legs and possibly part of the trunk. Individuals with paraplegia often retain full use of their arms and upper body but experience varying degrees of weakness or paralysis in their legs.

In contrast, quadriplegia involves weakness or paralysis affecting all four limbs, while hemiplegia refers to weakness on one side of the body, typically as a result of a stroke or brain injury. Monoplegia indicates weakness or paralysis in a single limb. These other terms describe different patterns of motor function impairment which are not limited to just the lower extremities, thereby distinguishing them from paraplegia.