Medicogramalmost 8 years ago

The Human brain;•The human brain is the largest brain of all vertebrates relative to body size.•It weighs about 3.3 lbs (1.4 Kg).• The brain makes up about 2% of the human's body weight.• Then in turn The cerebrum makes up 85% of the brain weight.•Brain contain over 86 billion nerve cells (neurons), Comprising the Gray matter & White matter. •These neurons are connected by trillions of connections called synapses.