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In the trachea _____ ‘C’ shaped cartilagenous rings are present.

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in Biology – Class 11 by (272k points)
In the trachea _____ ‘C’ shaped cartilagenous rings are present.

(a) 5-10

(b) 10-15

(c) 16-20

(d) 20-25

The 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

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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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