Question

The disease-causing germs are lashed away when they come in contact with the lining of the trachea. Give reason.

Answer 1

Answer:

The disease-causing germs are lashed away when they come in contact with the lining of the trachea because trachea is lined with ciliated cells. Cilia beat with an upward motion so that the foreign particles along with mucus are sent to the oral cavity from where they may be coughed out or swallowed.