内脏痛是一种极为复杂的感觉 ,易受情绪及经验的影响 ,个体间差异也很大 ;加以内脏初级传入性质复杂、难于分化 ,因此 ,在神经学上和医学上探索内脏痛的机制都是一个重大难题。膀胱由于具有以下特点而被做为模型广泛应用于内脏痛研究。首先 ,膀胱具有储存尿液和适时排空的特点 Visceral pain is a very complex feeling, susceptible to emotions and experience, the individual differences are also large; to be complicated by the primary visceral afferent, difficult to differentiate, therefore, in neurological and medical exploration visceral pain mechanism Are a major problem. The bladder has been widely used as a model for visceral pain studies due to the following characteristics. First of all, the bladder has the characteristics of storing urine and timely emptying