4 2 (a) Compare and contrast the central nervous system and the peripheral nervous system. (3) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... (b) During the First World War, some soldiers received head wounds that damaged one side of the cerebellum. One soldier said ‘ The movements of my left hand are done subconsciously but I have to think out each movement of my right arm.’ (i) State one function of the cerebellum. (1) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... (ii) State the part of the brain the soldier used to think about moving his right arm. (1) ...................................................................................................................................................................................................................................................................................... Turn over 5 (iii) Explain why this soldier had problems moving his right arm. (2) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... (Total for Question 2 = 7 marks)