Biology, asked by banishalyngkhoi99, 3 days ago

why the ring deficient posteriorly?

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Answered by Anonymous

2

The 'c' shaped cartilage rings are present in the trachea to prevent it from collapsing and they keep the trachea open for air to come in and out. ... (The cartilaginous rings are incomplete because this allows the trachea to collapse slightly to allow food to pas down the esophagus.)

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