Why a broken spinal column may result in complete paralysis of both legs?

A broken spinal column can disrupt the communication between the brain and the lower body by damaging the spinal cord, where nerve signals are transmitted. If the injury occurs in the lumbar or thoracic region, it can sever the pathways responsible for motor control and sensation in the legs. This interruption can lead to complete paralysis, as the brain can no longer send signals to the muscles needed for movement and coordination. The extent of paralysis depends on the severity and location of the spinal injury.