我对身体是很重要的。我有呼吸功能。把一刻也不能缺少的氧气吸入体内,供各个器官使用。同时我又把二氧化碳排出体外,避免体内环境被“污染”。由于鼻腔内有很多血管窦及腺体,这样既可调节吸入空气的温度和湿度,保护下呼吸道不受伤害,同时还有自洁作用,使鼻腔后半部很少存有细菌或病毒。我还能闻到饭菜的香味,大 I am very important to the body. I have breathing function. The moment can not be lack of oxygen inhalation, for use of various organs. At the same time I again excreted carbon dioxide, to avoid the body environment was “polluted.” Because there are many sinus and glandular nasal cavity, which can not only regulate the temperature and humidity of inhaled air to protect the lower respiratory tract from harm, but also self-cleaning role, so that the second half of the nasal cavity rarely contain bacteria or viruses. I can smell the scent of meals, too