Table of Contents 1 Pinyin 2 English Reference 3 Notes 1 Pinyin bí yì shàn dòng

2 alaenasi's English reference flaming[2 1 Century Bilingual Dictionary of Science and Technology]

Nose opening [Xiangya Medical Dictionary]

Note that the alar flap refers to the phenomenon that the alar expands outward when inhaling, the nostril opens wider, and it returns to its original position when exhaling, and the nostril retracts. The appearance of alar flap indicates high fever or high dyspnea. It is common in lobar pneumonia, airway obstruction, bronchial asthma, Japanese encephalitis, acidosis and so on.