Question

Inspiratory stridor is found in what kind of lesions:

• A. Supraglottic
• B. Subglottic
• C. Tracheal
• D. Bronchus

Answer 1

The Correct Option is A

Inspiratory stridor is a high-pitched sound that occurs when there is an obstruction in the upper respiratory tract during inhalation. It is typically associated with lesions or conditions that affect the airway above the vocal cords.

Lesions that cause inspiratory stridor are most commonly found in the supraglottic region. This area includes structures above the glottis such as the epiglottis and the aryepiglottic folds. Conditions affecting these structures can lead to narrowing of the airway during inspiration, thus causing stridor. The obstruction causes turbulent airflow, which produces the characteristic high-pitched sound.

Location	Stridor Type
Supraglottic	Inspiratory
Subglottic	Expiratory or Biphasic
Tracheal	Biphasic
Bronchus	Typically not stridor

Therefore, among the given options, inspiratory stridor is most closely associated with supraglottic lesions.