Paralysis and loss of sensory function in the legs is known as:

Paraplegia refers specifically to the paralysis and loss of sensory function in the legs, which results from injury or disease affecting the spinal cord in the thoracic region or lower. This condition leaves the upper body and arms unaffected, which is in contrast to other forms of paralysis that impact different areas of the body.

Understanding the terminology helps clarify the differences: tetraplegia (or quadriplegia) involves paralysis of all four limbs; monoplegia affects just one limb; and hemiplegia involves paralysis on one side of the body, typically resulting from a stroke or brain injury. The distinct definition of paraplegia makes it the most accurate choice for paralysis limited to the legs.