What does the term paraplegia refer to?

Paraplegia specifically refers to the condition of paralysis that affects the lower half of the body, typically resulting from injury or damage to the spinal cord. This means that individuals with paraplegia lose the ability to move or feel sensations in their legs and lower body but usually retain function in their arms and upper body.

The other options describe different conditions or types of paralysis. For instance, loss of sensation in all limbs could refer to quadriplegia or general sensory loss, which is not specific to the definition of paraplegia. Paralysis of one limb pertains to hemiplegia or monoplegia, which doesn't encompass the dual-leg and lower-body implications of paraplegia. Lastly, loss of all motor functions is a broader term that might imply total paralysis, which oversimplifies the specific focus of paraplegia, as it does not typically include upper body paralysis.