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In the trachea _____ ‘C’ shaped cartilagenous rings are present.(a) 5-10(b) 10-15(c) 16-20(d) 20-25The question was asked in an online quiz.My query is from Human Respiratory System topic in section Breathing and Exchange of Gases of Biology – Class 11

Answer»

The correct OPTION is (c) 16-20

To elaborate: In the trachea 16-20 ‘C’ SHAPED cartilagenous RINGS are present which prevent the trachea from collapsing. These rings are c shaped in order to allow EASY PASSAGE of food through oesophagus.



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