All of the following descriptions refer to dorsal column–medial lemniscal ascending pathways except one: (a) they include the fasciculus gracilis and fasciculus cuneatus; (b) they include a chain of...

All of the following descriptions refer to dorsal column–medial lemniscal ascending pathways except one: (a) they include the fasciculus gracilis and fasciculus cuneatus; (b) they include a chain of three neurons; (c) their connections are diffuse and poorly localized; (d) they are concerned with precise transmission of one or a few related types of sensory input.

(a) What is the advantage of having a cerebrum that is highly convoluted? (b) What term is used to indicate its grooves? Its outward folds? (c) Which groove divides the cerebrum into two hemispheres? (d) What divides the parietal from the frontal lobe? The parietal from the temporal lobe?