Which procedure uses a lighted flexible tube with an attached lens to view the inside of the respiratory system?

Which procedure uses a lighted flexible tube with an attached lens to view the inside of the respiratory system?

• A. Endoscopy
• B. Laryngoscopy
• C. Bronchoscopy
• D. Colonoscopy

Answer: (A)

Endoscopy is the general technique that uses a lighted flexible tube with a camera or lens to look inside hollow organs and passages. For the respiratory system, this umbrella term covers looking into airways and related structures, with specific procedures like bronchoscopy (viewing the bronchial tubes) and laryngoscopy (viewing the larynx). The device described—an illuminated flexible tube with a lens—defines an endoscope itself, so the broader term endoscopy best fits the description. Colonoscopy is not related to the respiratory system, as it views the colon.

Endoscopy is the general technique that uses a lighted flexible tube with a camera or lens to look inside hollow organs and passages. For the respiratory system, this umbrella term covers looking into airways and related structures, with specific procedures like bronchoscopy (viewing the bronchial tubes) and laryngoscopy (viewing the larynx). The device described—an illuminated flexible tube with a lens—defines an endoscope itself, so the broader term endoscopy best fits the description. Colonoscopy is not related to the respiratory system, as it views the colon.