Question

Regarding the functions of our respiratory system (conducting zone), mark the wrong entry.

• A. Exchange of gases
• B. Humidifies the air
• C. Cleans up the air
• D. Warms up the air

Answer 1

The correct option is A Exchange of gases

Conducting zone :

The part of the conducting zone includes external nostrils, nasal chamber, internal nares, nasopharynx, larynx, trachea, bronchi and bronchioles (up to terminal bronchioles).


Humidifies the air:

The air when it enters the nostrils and nasal passage, gets humidified due to the internal moisture.

Warms up the air :

The conducting zone warms up the air because of the heat generated by our body (the tissues of the conducting zone).

Exchange of gases :

Exchange of gases occurs in the alveoli of the lungs and not by the conducting part of the respiratory system.

Cleans up the air :

The air that we inhale is cleaned to remove air particles, dust by the hairs present in our nostrils.

Final answer : c. Exchange of gases