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.
The late John Ciardi, in A Browserâs Dictionary, dismissively calls the OEDâs idea âa clerkâs guessâ and asserts that it comes instead from the Dutch phrase nicht om poep, meaning âthe female relative of a foolâ. He added, âAnd if that does not work out ... I will be a monkeyâs uncleâ.