Human brain is more intelligent than monkey's brain due to:
A i.e. Larger brain The propoion of the various pas of the brain are similar in the brains of apes and human, but the human brain is largerQ, so the absolute size of the association area is greaterQ.* Brain size: Human >Chimpanzee > MonkeyQ.Weight of Human brain=1400 gm and Monkey brain = 100gmAssociation AreasAssociation areas: are pa of six- layered neocoical mantle of gray matter that spreads over the lateral surfaces of cerebral hemisphere from concentric allocoical & juxta coical rings around the hilum. The most prominent gross feature of the human brain is immense growth of three major association areasQ.i) Frontal in front of premotor areaii) Parietal temporal occipital - b/w somatesthetic & visual coex extending into posterior poion of temporal lobe.iii) Temporal - from the lower poion of temporal lobe to limbic system. Speech & other intellectual function are controlled by neocoex.The ratio b/w brain weight and body weight is more impoant than size of the brain as three species have brains larger than humans (the whale, elephant & porpoise)The right to left differentiation is seen in chimpanzee and human. In humans left brain > Right brain
Larger brain
Increased convulations
Increased brain area compared to body surface area
More blood supply