嗅觉,是辨别外界物体气味的感觉.饮食给进食者的最初的印象,除了视觉外,那就是嗅觉.嗅觉是由物体散发于空间的物质微粒,也就是气体分子或挥发性物质,作用于嗅觉器官的感受细胞而引起的. Smell is the sense of smell that distinguishes outside objects. The first impression of a diet on an eater is, in addition to the sight, the sense of smell, the sense of smell that is emitted by an object in the space of matter, gas molecules or volatile substances that act on the sense of smell Organ of the cells caused by feelings.