What is the significance of the "C-shaped" cartilages that reinforce the tracheal rings?
A) The incomplete portion of the C-shaped cartilages are located at the posterior of the tracheal cartilages, to permit the esophagus to bulge anteriorly into the tracheal lumen in transient fashion to permit a large bolus to pass.
B) The open region permits passage of the nerves that stimulate the muscles of the laryngeal region.
C) They form a solid cartilaginous tube.
D) These cartilages hold the trachea rigidly open at the same diameter at all times.
E) None of the answers are correct.
A) The incomplete portion of the C-shaped cartilages are located at the posterior of the tracheal cartilages, to permit the esophagus to bulge anteriorly into the tracheal lumen in transient fashion to permit a large bolus to pass.
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