Question

Which of the following 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 → alevoli

Answer 1

Human air passageway:

The correct sequence of air passage during inhalation is (d) nostrils → pharynx → larynx → trachea → alveoli.

Explanation:

• The air enters nasal cavity through nostrils and the air is filtered through mucous membrane.
• The pharynx opens into two tubes which is common for both food (leads to throat) and air (leads to esophagus).
• The larynx or voice box helps is formation of the voice. This part prevents the liquids and foods from entering respiration system.
• Trachea is a wind pipe and is strengthened by rings of cartilage which prevents the trachea from collapsing. It is a 12 cm pipe.
• The alveoli helps in exchange of gases (carbon dioxide and oxygen) between the blood and the lungs.

You can get all the answers of Chapter 1 here:

https://brainly.in/question/13831450

Answer 2

Option D is correct

Explanation:

• As during inhalation or breathing, the air (Oxygen) enters through nose (Two of the Nostrils) and  passes the Pharynx.

Details for passage are -

• Air enters in our body through nostrils (external most portion of nose). From there it goes into pharynx (passage of air) and then into larynx (voice box). Then air comes into trachea and from here it reaches alveoli of lungs via bronchi and bronchioles.