Supportive cartilage disappears from the bronchial tree at the level of the
A) alveolar duct.
B) respiratory bronchiole.
C) bronchioles.
D) lobar bronchi.

Name: Supportive cartilage disappears from the bronchial tree at the level of the A) alveolar duct. B) respiratory bronchiole. C) bronchioles. D) lobar bronchi.
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Question

Quizplus · Accepted Answer

Supportive cartilage is present in the larger airways like the trachea and bronchi but disappears at the level of the bronchioles, which are smaller airways that do not contain cartilage.

Supportive Cartilage Disappears from the Bronchial Tree at the Level