What is the size of the human brain and how many neurons does it hold? All these questions and thoughts are generated from the most amazing organ, the human brain itself. The brain helps people to think, remember, learn, and control the human body. Its superior functioning gives human beings the ability to perform challenging tasks that are different from other living animals.
While the human brain has the same basic structure as other mammal brains, it is larger in relation to body size than any other mammals. In comparison, the human brain weighs around 1,232 grams as compared to an elephant’s brain weighing approximately 2,848 grams – which is about three times larger. Despite the size difference, the human brain holds more neurons in a human’s cerebral cortex than in the cortex of any other animal. For example, a gorilla’s brain has about 33 billion neurons, but it only contains 9.1 billion neurons in the cerebral cortex. An elephant’s brain has about 257 billion neurons, but it contains only 5.59 billion neurons in the cerebral cortex. The human brain, on the other hand, has about 86 billion neurons and it contains 16.3 billion neurons in the cerebral cortex.
Based on studies, humans appear to have the most cortical neurons of any species on Earth. This is the most apparent difference between the human and non-human brains, which concludes that the intelligence and capability of a living creature depend on its brain’s architecture.