What Is the Significance of the "C-Shaped" Cartilages That Reinforce

question 119

Multiple Choice

What is the significance of the "C-shaped" cartilages that reinforce the tracheal rings

• A)These cartilages hold the trachea rigidly open at the same diameter at all times.
• B)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.
• C)They form a solid cartilaginous tube.
• D)The open region permits passage of the nerves that stimulate the muscles of the laryngeal region.
• E)None of the answers are correct.

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The cost incurred by producing one additional unit of a product, reflecting changes in variable costs.

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