Cerebrum:The largest part of the brain responsible for voluntary muscular activity, vision, speech, taste, hearing, thought, and memory.
Spinal Cord:A long, thin, tubular structure made up of nervous tissue that extends from the medulla oblongata in the brainstem down to the lumbar region of the vertebral column.
Autonomic Nervous System:The part of the nervous system responsible for control of bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes