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.
Usage note. The term harelip is usually perceived as insulting because it compares the deformity in humans to the normal cleft lip of a hare. The accepted term for this medical condition is cleft lip. Common illustrations of such deforming developmental accidents are harelip, cleft palate, and club foot.