Question

What part of the respiratory system prevents the air passage from collapsing?

• A. Trachea
• B. Rings of cartilage
• C. Spine
• D. Ribs

Answer 1

Answer:

B. Rings of cartilage

Cartilaginous rings around the trachea prevent the air passage from collapsing, ensuring it remains open for air flow during breathing C-shaped cartilaginous rings reinforces the anterior and lateral sides of the trachea to protect and maintain the airway open. (The cartilaginous rings are incomplete because this allows the trachea to collapse slightly to allow food to pass down the esophagus.)