Answer:
Step-by-step explanation:
The trachea's cartilaginous C-shaped rings support the body structurally and maintain the trachea's opening, allowing for unhindered breathing. They keep the trachea in good shape, preventing collapse and preserving a clear path for air to travel into and out of the lungs.
For example, when swallowing, the C-shape provides flexibility and expansion. When food goes through the oesophagus behind the trachea, for example, the rigidity of the cartilage shields it from pressure. Overall, the trachea's C-shaped rings support continuous, effective breathing.