Why are the rings of cartilage surrounding the trachea C ^-shaped? A) The C rings of cartilage allow the esophagus to expand during swallowing. B) The C rings of cartilage allow the esophagus to expand during swallowing, allow the trachea to change diameter during breathing, and keep the trachea patent (open). C) The C rings of cartilage keep the trachea patent (open). D) The C rings of cartilage allow the trachea to change diameter during breathing.

Question

Quizplus · Accepted Answer

The C-shaped rings of cartilage provide structural support to keep the trachea open, allow flexibility for the trachea to change diameter during breathing, and permit the esophagus to expand when swallowing.

Why Are the Rings of Cartilage Surrounding the Trachea C