the brain of an adult human weighs around 3 pounds (1.5 kg).Although it makes just 2% of the body's,it uses around 20% of its energy.

the human brain is protected by the skull (cranium),a protective casing is made up of 22 bones that are all joined together.

the brain is the centre of the human nervous system,

controlling our thoughts,movements and decisions.

the is also a nerve in your ear named auditory.