Normal brain, coloured magnetic resonance imaging (MRI) scan. Sagittal (side) view of a human head and neck, showing the brain and upper spinal cord (red/orange). The cerebrum (folded region) is the largest part of the brain and is made up of two hemispheres. It is responsible for conscious thoughts and actions, memory and personality. The branched structure at the back of the brain is the cerebellum, which controls voluntary movement and maintains posture and balance. Vertebrae (spinal bones) are also seen running alongside the spinal cord.
{"Image Copyright": "SOVEREIGN, ISM/SCIENCE PHOTO LIBRARY"}