1. Mechanical stimulation (mild pressure stimuli) applied to the posterior parts of tongues and pharynxes induced marked dilatation of stomachs, decrement of gastric contraction amplitudes, reduction of gastric tonus and prolonging the interval of intragastric pressure to prevent the gastric contents from regurgitation.
    机械刺激舌根部及咽部（按压刺激）可引起胃显著扩张，胃收缩幅度减小，胃紧张性下降及胃收缩间歇时间延长，从而降低胃内压力，防止胃内容物返流溢出。