表面意思是“躯体系统”。楼主是不是少写一个单词？是不是“Somatic nervous system”，躯体神经系统？这和中枢神经系统（central nervous system)区别的外周神经系统啊。
The somatic nervous system (SNS) is the part of the peripheral nervous system[1] associated with the voluntary control of body movements through the action of skeletal muscles, and with reception of external stimuli, which helps keep the body in touch with its surroundings (e.g., touch, hearing, and sight).
The system includes all the neurons connected with skeletal muscles, skin, and sense organs. The somatic nervous system consists of efferent nerves responsible for sending brain signals for muscle contraction.
