Question

Which is the correct sequence of air passage during inhalation?

Nostrils → larynx → pharynx → trachea → lungs
Nasal passage → trachea → pharynx → larynx → alveoli
Larynx → nostrils → pharynx → lungs
Nostrils → pharynx → larynx → trachea → alveoli

Answer 1

Answer:

nostrils → pharynx →larynx →trachea →bronchi →lungs

Explanation:

Answer 2

Answer: The 4th option is correct

Explanation:

Please observe the attached diagram.

Air enters our body through our nostrils (nasal cavity). It passes towards the pharynx, which is the roof of the mouth. Pharynx is also the common passage of air and food.

From the pharynx, air goes to the larynx, or the voice box. The larynx is situated just above the trachea, also known as wind pipe. From the trachea, it enters the lungs via the bronchi and bronchioles, and ultimately ends up in the alveoli. The alveoli are air sacs surrounded by blood capillaries, where diffusion of O2 and CO2 takes place.