Question

I.Name the following:-(4 marks)

1. It is the point of entry of air in human beings. ____

2. It closes the windpipe at the time of swallowing of food. ____

3. The microscopic air sacs of the lungs. ____

4. The two membranes which protect the lungs. ____

II.Fill in the blanks:- (4 marks)

1.Each bronchus is divided into smaller branches called ____.

2.____ is a common passage for air and food.

3.Anaerobic process does not utilize ____.

4.Air pollutants and allergens can trigger an ____ attack.​

Answer 1

Answer:

I)1. The Respiratory System

2. Epiglottis

3. Alveoli

4. The Pleural Membrane

II)1. Bronchioles

2. Oropharynx

3.

4. Asthma