PATHOLOGY

Detailed explanation-1: -Brain weight reaches adult values (about 1.45 kg) between 10 and 12 years of age. The fastest growth occurs during the first 3 years of life so that by the age of 5 years the infant’s brain weighs about 90% of the adult value (Dekaban, 1978).

Detailed explanation-2: -The average adult human brain weighs around 3 pounds (approximately 1.4kg) and is about the size of a medium cauliflower. It contains around 100 billion nerve cells, called neurones, which are connected by 100 trillion connections, known as synapses.

Detailed explanation-3: -The average human brain weighs about 3 pounds.