鼻子是人体呼吸系统中的一个重要器官,鼻腔内有鼻毛、鼻粘膜,鼻粘膜主要功能是分泌粘液和浆液,即鼻涕,其对鼻粘膜起保护作用,能阻止病毒、细菌的入侵。看上去鼻毛、鼻涕是废物,其实它是人体防御机制中的一部分。经常挖鼻孔很容易损伤鼻 The nose is an important organ in the human respiratory system. There are nasal hair and nasal mucosa in the nasal cavity. The main function of the nasal mucosa is to secrete mucus and serous fluid, that is, the nasal mucus, which can protect the nasal mucosa and prevent the invasion of viruses and bacteria. Looks like nose hair, nose is waste, in fact it is part of the human defense mechanism. Often digging nose is easy to damage the nose