Inspiratory stridor is due to lesions of:
STRIDOR 1. Inspiratory stridor - obstructive lesion of supraglottis of pharynx. 2. Expiratory stridor - lesion of thoracic trachea, primary and secondary bronchi 3. Biphasic stridor - lesion of glottis sub glottis and cervical trachea.
Supraglottis
Subglottis
Trachea
Bronchi
NEET 2019