智课网 TOEFL备考资料托福阅读文章：肺部有味觉内容简介：在以往的研究中，人们认为人体的味觉器官并不包括肺部，但是最新一项研究却发现肺部肌肉有“品尝”苦味的功能。Take a deep breath. Taste anything? Actually, your lungs may. Because scientists have discovered that the same receptors that exist on the tongue to taste bitter substances are also found on the smooth muscle of the lungs.Researchers were studying the receptors on smooth lung muscles that regulate contraction and relaxation of theairways. Thats when they made the discoverywhich was so unexpected that the researchers themselves were skeptical.Finally, they became convinced that the receptors were really there, though not clustered in taste buds as they are on the tongue. The scientists then exposed human and mouse airways to various bitter compounds to gauge the effects.相关推荐:托福阅读材料：纪念 美国残疾人法托福阅读：长难句中英互译 托福阅读材料：染料进行能量转化相关字搜索： 托福阅读