Goblet cells secrete mucus in the trachea and bronchi to trap particles, which is then moved away from the lungs by the action of cilia on epithelial cells.
Goblet cells in the trachea and bronchi secrete mucus to trap dust and microorganisms, while cilia on epithelial cells beat rhythmically to move this mucus towards the throat for removal and digestion.
| Front | Explain how ciliatead epithelial cells and goblet cells of trachea and bronchi work together to protect the lungs. |
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| Back | Ciliated epithelial cells & goblet cells:
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