Question

Which is the correct sequence of air passage during inhalation?

• A. Nostrils→ larynx→ pharynx→ trachea→ lungs.
• B. Nasal passage→ trachea→ pharynx→ larynx→ alveoli
• C. Larynx→ nostrils→ pharynx→ lungs
• D. Nostrils→ pharynx → larynx→ trachea→ alveoli.

Answer 1

The correct option is D

Nostrils→ pharynx → larynx→ trachea→ alveoli.

The correct option is D.

Explanation of correct option:

1. Inhalation is the action of breathing in.
2. It is the process of taking in oxygen and releasing carbon dioxide from the body.
3. The sequence of air passage during inhalation:

• Air is inhaled through the mouth or through the nose.
• Then travels across the different parts of the pharynx and is directed to the larynx.
• Now air reaches the bronchioles by traveling through the trachea.
• Then eventually reaches the alveoli for the exchange of gases.

Final answer: The correct sequence of air passage during inhalation is Nostrils→ pharynx → larynx→ trachea→ alveoli.