NEET Biology question
Which of the following structures are supported by incomplete cartilaginous rings? (A) Trachea (B) 1° bronchi (C) 2° bronchi (D) 3° bronchi (E) Initial bronchioles (F) Terminal bronchioles (G) Duct of alveoli (H) Alveoli
Answer: (A)
Solution
As per NCERT (section 17.1.1), the trachea and the successively finer bronchi (1°, 2°, 3°) continue down only as far as the initial bronchioles supported by incomplete cartilaginous rings; the terminal
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