CAIE IGCSE Biology 11.1.7 Function of Cartilage in the Trachea Questions

Practise describing how cartilage rings support the tracheal wall, prevent collapse and keep an open passage for air during breathing.

Exam points

state that tracheal cartilage rings keep the airway open, preventing collapse and allowing air to pass freely

[Maximum number: 2]

Fig. 1.1 is a diagram of the gas exchange system in humans.

Fig. 1.1

State the name of the tissue that forms C-shaped structures in the wall of the trachea and state its function.
name
function

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