2.5 The Human Brain and Its Complexity October 23, 2019January 28, 2014 by 2.5 The Human Brain and Its Complexity 2.5.1 Structure of the Human Brain External structure of the brain Longitudinal section of the brain 2.5.2 Specific Feature of the Brain 2.5.3 Functions of Human Brain Functions of human brain 2.5.4 The Cerebrum and its Functions Cerebrum and its functions