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【Location】On the face，in the centre of the tip of the nose.
【Manipulation Method】Puncture obliquely upward 0.3-0.5 cun，or prick with a threeedged needle to cause bleeding.
【Indications】Coma，loss of consciousness，apoplectic，epilepsy，lockjaw，deviated mouth，toothache，nasal obstruction，epistaxis.
【Stratified anatomy】（Fig.1-2）
（1）Skin The skin is distributed by external nasal branch of anterior ethmoidal n..
（2）Subcutaneous tissue There are external nasal branch of anterior ethmoidal n.，dorsal nasal branch of facial a. ＆ v..
（3）Septal cartilage of nose and lateral nasal cartilage Both of them are composed of hyaline cartilage.