Question

Choose the correct answer from the alternatives given.
What are the two large branches of the airway which lead off the trachea at the tracheal bifurcation?

• A. Alveoli
• B. Bronchi
• C. Metavenules
• D. Bronchioles

Answer 1

The correct option is B Bronchi

The two large branches of the airway that lead off the trachea at the tracheal bifurcation are the bronchi. They act as the main passageway into the lungs. Each bronchus enters one of the two (either the left or the right lung). Within the lungs, the bronchi branch off into smaller and smaller passageways, the smallest of which are called bronchioles and at the end of the bronchioles are tiny air sacs that are known as the alveoli. The re-oxygenized blood is sent through meta venules to the pulmonary vein. So, the correct option is 'bronchi'.