1. Tardigrade
  2. Question
  3. Biology
  4. All of the following structures of the human respiratory system contains incomplete cartilaginous rings, except:

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Q. All of the following structures of the human respiratory system contains incomplete cartilaginous rings, except:

NTA AbhyasNTA Abhyas 2020Breathing and Exchange of Gases

Solution:

The trachea, primary bronchi, secondary bronchi, tertiary bronchi and initial bronchioles are supported by incomplete cartilaginous rings.