This is called the gagging or the coughing reflex
Cilia are responsible for removing foreign material from the trachea and bronchi. They are like little dusters that remove germs and bacteria.
The right bronchi
The right main bronchus
Foreign objects that enter the respiratory passageways are more likely to become lodged in the right primary (main) bronchus.
A high tariff to limit foreign competition is called a protective tariff.
Don't worry
A high protective tariff can limit foreign competition.
A high tariff that limits foreign competition is a protective tariff.
protect home industries from foreign competition
A protective tariff!
The immune response that is stimulated in an organ transplant is aimed at fighting any foreign materials in the body. The T cells will reproduce by mitosis so as to provide antigens.
Established protective tarriffs on imports.