机体内所有的机能都由中樞神经来調节。皮肤是整个机体的一部份,它执行着感受、分泌、保护等一系列的重要功能,而且与中樞神經有着最密切的联系,并处于中樞神經經常影响之下。皮肤内分布着丰富的神经装置,它把皮肤与大脑皮层密切的联系起来。因之,皮肤是一个巨大的感受野,末稍部份的每一变化都必然反射到大脑皮层中去。 All the body’s functions are regulated by the central nervous system. The skin is a part of the body and performs a series of important functions such as sensation, secretion and protection. It has the closest connection with the central nervous system and is under the influence of the central nervous system. The skin is rich in nerve devices, which link the skin closely to the cerebral cortex. Therefore, the skin is a huge feeling of wild, the last part of every change must reflect to the cerebral cortex to go.