鼻子是呼吸和嗅觉的器官,是人体呼吸通道的起始部分,分外鼻和鼻腔两部分:外鼻有鼻梁、鼻翼和鼻孔;鼻的内部是鼻腔,由鼻中隔分成左右两半,长有鼻毛,鼻腔后部外侧壁上有上、中、下三个鼻甲,与鼻道、咽喉相通。当鼻腔吸入大量的细菌时,血液中的白血球就会奋不顾身地冲上去,把细菌消灭掉。当身体抵抗力下降时,大量的白血球就会战死“疆场”。一旦鼻子中流出黄鼻 Nose is the respiratory and olfactory organs, is the beginning of the human respiratory tract, sub-nasal and nasal cavity two parts: nose and nose, nose and nose; nasal nasal cavity is divided into about half by the nasal septum, long nose , Nasal posterior wall on the outside of the upper, middle and lower three turbinate, and nasal passages, throat connected. When the nasal inhalation of a large number of bacteria, the white blood cells in the blood will rush to rush to eliminate the bacteria. When the body resistance drops, a large number of white blood cells will die “battlefield ”. Once the nose out of the yellow nose