A roast beef sandwich on white bread is a deli classic. Usually made with beef from the round, or hind leg, section of the cow -- roast beef is one of the leaner cuts of beef with fewer calories than fattier sections. Video of the Day
corpus callosum. a great band of deeply situated transverse white fibers uniting the two halves of the cerebrum in humans and other mammals.
4 History The corpus callosum The corpus callosum is a structure in the brain of all placental mammals that connects the left and right cerebral hemisphere. Containing numerous intra-, and interhemispheric axonal projections it is considered to be the largest white matter structure in the brain.