Best Answer: B) Corpus callosum which is a wide, flat bundle of neural fibers beneath the cortex in the eutherian brain at the longitudinal fissure. It connects the left and right cerebral hemispheres and facilitates interhemispheric communication. It is the largest white matter structure in the brain, consisting of 200â250 million contralateral axonal projections.
harebrained â(comparative more harebrained, superlative most harebrained) ( 1 of an idea or plan etc) absurd, foolish or stupid. ( 2 of a person) frivolous and silly; featherbrained or scatterbrained.
It can be argued that the neurons are such processors, but that is not what cognitive scientists mean when they say the brain is a 'parallel system'. They think on more complex processors, with more capabilities than a single neuron has. However, this kind of processors does not exist in the brain. The main thinking part of the brain is the cerebral cortex, and in the cortex there are no separate units at all. Every region in the cortex has direct connections (i.e. sends axons and receives axons) to all its neighbors, and in many cases to further regions.