摘要
嗅细胞的气味受体捕捉气体分子,激活特异性的G蛋白,把气味信号转换成动作电位,沿嗅觉传导通路传输到嗅皮层,最后大脑完成对气味信号的整理和识别作用,形成对气味的感受.一个嗅觉细胞表达一种气味受体,人类约有350个气味受体基因.嗅觉系统采用受体组合的方式对气味分子进行编码,可感受10000种以上彼此不同的气味分子.对复杂的嗅觉系统的研究有助于阐明整个感觉系统的工作原理.
The odorant receptors of the olfactory cell can detect the odorant molecules, then the spicific G- protein is activated and changes the odorant message into action potential via a series of information processing steps of the olfactory system. Finally the pallium form olfactory sense via the discrimination. A olfactory cell can express one odorant receptor. There are about 350 odorant receptor genes in human. The olfactory system can distinguish ten thousands of odors with specific coding theory and cryptography. And the study to the complicated olfactory system is very useful to the sense system.
出处
《商丘师范学院学报》
CAS
2006年第5期137-139,共3页
Journal of Shangqiu Normal University
关键词
嗅觉系统
气味分子
气味受体
the olfactory system
odorant molecule
odorant receptor
