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Trachea, bronchi, and bronchioles are all supported by _______(a) incomplete cartilaginous rings(b) complete cartilaginous rings(c) in-cartilaginous rings(d) bonesThis question was posed to me in a job interview.I need to ask this question from Human Respiratory System topic in section Breathing and Exchange of Gases of Biology – Class 11

Answer»

Right answer is (a) incomplete cartilaginous rings

For explanation: Trachea, bronchi, and BRONCHIOLES are all supported by incomplete cartilaginous rings. They are ACTUALLY hyaline cartilage and this is STRONG enough to hold the mentioned parts. They are also supported by a SMALL smooth muscle at the END of the trachea.



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