Why is the trachea supported by C-shaped cartilage rings?
A)to hold it open all the time
B)to allow the esophagus to expand when swallowing
C)to produce sound as air passes through
D)both to hold it open all the time and to allow the esophagus to expand when swallowing

Question

Quizplus · Accepted Answer

The C-shaped cartilage rings provide support to the trachea, holding it open all the time. However, the cartilage rings are incomplete posteriorly, allowing the esophagus to expand when swallowing.

Why Is the Trachea Supported by C-Shaped Cartilage Rings