嗅觉模型的理论研究

嗅觉反应的主要机理包括以下五个连续的主要过程 :1 周围环境中的气味分子通过鼻腔中对流与扩散的双重作用 ,传输到嗅区 ;2 气味分子在嗅区的上方侧向传输到达嗅粘膜表面 ;3 气味分子被嗅粘膜表面的粘液所吸附 ;4 气味分子在嗅粘膜层中扩散 ,到达嗅细胞 ;5 气味分子的浓度在嗅细胞处达到浓度阈值 ,刺激嗅细胞放电 ,产生嗅觉。我们建立了揭示这五个主要过程的嗅觉模型 ,并通过理论分析得到模型的精确解。精确解定量揭示了嗅觉生理参数之间的内在关系 ,为进一步研究嗅觉机理提供了理论依据

THEORETICAL RESEARCH FOR OLFACTORY MODEL

In this paper, the olfactory response is divided into five related primary processes, they are:(1) convection and diffusion of odorant molecules to the olfactory region of the nasal cavity;(2)lateral transport of odorant molecules from the flowing gas stream onto the nasal mucus surface;(3)sorption of odorant molecules into the mucus at the air mucus interface;(4)diffusion of odorant molecules through layer;(5)interaction of odorant molecules with the olfactory receptor cells to yield the olfactory response. A theoretical model of olfaction involving the above mentioned mechanism is developed and its analytical solution is also obtained. The analytical solution reveals the relation among the physiological parameters of the model and provides a theoretical basis for olfactory research.