Introduction 2. Basic terminology in nervous system:常用术语 (1)CNS:中枢神经系 1) Gray matter灰质: collection of nerve cell bodies and their dendrites Cortex皮质 the outer layer of gray matter n cerebrum and cerebellum Nucleus神经核 A group of nerve cell bodies which have the same shape and function2. Basic terminology in nervous system:常用术语 (1) CNS: 中枢神经系 1) Gray matter 灰质: collection of nerve cell bodies and their dendrites, Introduction the outer layer of gray matter in cerebrum and cerebellum A group of nerve cell bodies which have the same shape and function. Cortex 皮质 : Nucleus 神经核