The nose has mucus,a sticky substance .When outside air passes through the nose,the mucus .Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus.When mucus accumulates,.

1a.Blocks carbon dioxide from entering
1b.Filters the air
1c. Protects the respiratory system

2a.the air reaching the lungs will not be filtered
2b. Less air reaches the lungs
2c. more air is exhaled

Mucus in nose helps us to filters the air which may contain dust particles and foreign particles. Bronchitis is an inflammation of lining of bronchial tubes and due to inflammation mucus accumulates in bronchioles and thus less air reaches to the lungs.

Answer Link

VestaHofman VestaHofman · Answer 2 · 2019-05-14T09:47:38+02:00

Answer: 1b. Filters the air 2b. Less air reaches the lungs

Explanation:

Answer 1: Mucous is a sticky aqueous secretion produce inside the nose, trachea, bronchus and the entire respiratory tract. The sticky nature of the mucus causes the adhesion of dust, pollutant particles and air borne microbes entering the respiratory tract along with the air. This way the mucus helps in filtering the air.

Answer 2: Bronchitis is an inflammation of the bronchioles, the tubes which carries the oxygenated air into the lungs get blocked due to the accumulation of mucus. Therefore, less air reaches the lungs.