11). Explain why myelinated nerve fibers conduct signals muchfaster than unmyelinated nerve fibers.
12). What is meant by the anterior (ventral) & posterior(dorsal) roots of a spinal nerve? Which of these is sensory &which is motor?
13. Contrast the composition and locations of gray matter &white matter in the brain.
20. ). If the oculomotor nerve or the trochlear nerve or theabducens nerve each was damaged, the effect would be similar in allthree cases. What would that effect be? Explain.
