Respiratory System

Q. Which of the following is the correct sequence with respect to human respiratory system?

1. Nasal passage, pharynx, larynx, bronchioles, bronchi, alveoli.
2. Nasal passage, larynx, pharynx, bronchi, bronchioles, alveoli.
3. Nasal passage, pharynx, larynx, bronchi, bronchioles, alveoli.
4. Nasal passage, pharynx, larynx, alveoli, bronchi, bronchioles.

Q.

What is the function of the sac-like structures present at the end of bronchioles?

1. Storage of respiratory gases

2. Exchange of respiratory gases

3. Protection of lungs

4. Protection from bacteria

Q.

The function of hair and mucous lining in nostrils is to ______________.

1. Filter inhaled air

2. Prevent entry of foreign bodies and germs

3. To warm up the air entering the lungs

4. All of the above

Q. Name the organ in humans which produces sound.

1. Larynx
2. Pharynx
3. Uvula
4. Bronchioles

Q.

The exchange of gases [O₂ and CO₂] in a mammal takes place in

1. Bronchi

2. Bronchioles

3. Trachea

4. Alveoli

Q.

Vocal cords occur in_____

1. Pharynx

2. Larynx

3. Bronchial tube

4. Glottis

Q.

The part of the respiratory tract that is responsible for keeping healthy is

1. Trachea

2. Bronchi

3. Nasal Cavity

4. All of the above

Q.

Inhalation of air takes place through____

1. Trachea

2. Lungs

3. Alveoli

4. Nose

Q.

During a breathing cycle, why do lungs always contain a residual volume of air in it?

1. It makes O₂ transport efficient and faster.

2. It helps in CO₂ release slower and O₂ transport faster.

3. It gives sufficient time for CO₂ absorption and O₂ release.

4. It gives sufficient time for O₂ absorption and CO₂ release.

Q.

In respiration, air passes through

1. Nasal cavity, Pharynx, Larynx, Trachea, Bronchi, Bronchiole, Lungs

2. Pharynx, Nasal cavity, Larynx, Trachea, Bronchi, Bronchiole, Lungs

3. Larynx, Pharynx, Trachea, Lungs

4. Larynx, Nasal cavity, Pharynx, Trachea, Lungs