Division of Nervous Syetem 神经系统的分区 周围神经系统 peripheral nervous system 脊神经 spinal nerves 脑神经 cranial nerves ●躯体神经 somatic nerves ●内脏神经 visceral nerves ·中枢神经系统 peripheral nervous system 脊髓 spinal cord ●脑b rainDivision of Nervous Syetem 神经系统的分区 • 周围神经系统peripheral nervous system • 脊神经spinal nerves • 脑神经cranial nerves • 躯体神经somatic nerves • 内脏神经visceral nerves • 中枢神经系统peripheral nervous system • 脊髓spinal cord • 脑brain