Final answer:
Hemiplegia is the paralysis of the arm, trunk, and leg on one side of the body, typically resulting from a stroke or spinal cord injury.
Step-by-step explanation:
Hemiplegia is the paralysis of the arm, trunk, and leg on one side of the body. This condition can occur from various medical issues, such as stroke or spinal cord injury. Normally, the right hemisphere of the brain controls the left side of the body and vice versa; hence a stroke or injury in one hemisphere would cause hemiplegia on the opposite side of the body.