Trachea Histology · Histology

The perichondrium of the tracheal rings is significant because it:

  1. Provides cells for cartilage growth
  2. Secretes mucus into the lumen
  3. Acts as a barrier against viral infections
  4. Is the primary site of gas exchange
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Correct answer: Provides cells for cartilage growth

The perichondrium is a layer of dense irregular connective tissue surrounding the hyaline cartilage. It provides blood supply to the avascular cartilage and contains chondroblasts for growth.

Difficulty: Medium Question 16 of 20

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