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.
Definition of impetus. impetus was our Word of the Day on 08/07/2013. Hear the podcast! Examples of impetus in a sentence. In a revealing comment, Mr. Updike says an impetus for Rabbit, Run was the âthreateningâ success of Jack Kerouac's On the Road, the signature book of the 1950s Beat Generation, and its frenetic search for sensation.