Question # 1

Percentage of CO₂ in exhaled are during breathing is:

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16%

4%

79%

0.04%

How many lobs are present in right lung?

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2

3

4

5

When the "World no tobacco day" is celebrated?

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30 June

31 June

11 January

None of these

Main role to give out air form lungs is;

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Bronchus

Bronchi

Bronchiote

Diaphragm

How many bronchi are there in the air passageway?

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One

Two

Many

None of these

The number of lobes in right lung is:

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1

2

3

4

The rate of breathing at rest in human is:

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16-20 times per minute

70-80times per minute

80-100times per minute

10 -20 times per minute

How many carciogens are present in cigarette smoke?

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40

50

60

70

A thick muscular layer beneath lungs is called:

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Kidney

Diaphragm

Bladder

Ureter

The structural and functional unit of lungs is:

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trachea

pharynx

broncioles

alveolus

C-Shaped cartilaginous rings are present in the wall of.

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Bronchi

Bronchioles

Alveoli

Trachea

Cutting of walls of Alveoli called:

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Pneumonia

Emphysema

Bronchtis

Asthama

The length of trachia is __________ cm approximately:

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10

12

14

16

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