Question

Question 15
Which is the correct sequence of air passage during inhalation?

(a) $Nostrils\to larynx\to pharynx\to trachea\to lungs$
(b) $Nasalpassage\to trachea\to pharynx\to larynx\to alveoli$
(c) $Larynx\to nostrils\to pharynx\to lungs$
(d) $Nostrils\to pharynx\to larynx\to trachea\to alveoli$

Answer 1

(d) $Nostrils\to pharynx\to larynx\to trachea\to alveoli$

The air for respiration is drawn into our body through the nostrils, it then goes into the nasal passage. From there, air enters into pharynx, larynx, then into the trachea, bronchi, lungs and finally to the alveoli where gaseous exchange takes place.