Prolonged odor stimulation, however, could produce more long-lasting reductions in response, possibly involving structures higher in the central nervous system pathway.
然而，长时间的气味刺激可以产生更持久的反应减少，可能涉及中枢神经系统通路的高层结构。
2
The upper part of the nose is like a back door into the brain because the nerves involved in smell provide a pathway straight into the central nervous system.
鼻腔的上部就如同进入大脑的后门，因为有关嗅觉的神经提供直接进入中枢神经系统的途径。
3
Latest studies have shown that CD200-CD200R pathway is an important mechanism which can reduced microglia activation in the central nervous system.