Biology, asked by kevalrammeghwal1974, 2 months ago

Q. 26. How is the human respiratory passage
protected and what protects it?​

Answers

Answered by Sarah0909
7

Answer:

The main way the respiratory system protects itself is called the mucociliary escalator. From the nose through the bronchi, the respiratory tract is covered in the epithelium that contains mucus-secreting goblet cells. The mucus traps particles and pathogens in the incoming air.

Answered by Samiksha1125
4

Answer:

Tiny hairs called cilia (SIL-ee-uh) protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.

Cilia propel a liquid layer of mucus that covers the airways. The mucus layer traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.

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