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RESPIRATORY SYSTEM

Total questions: 20

Worksheet time: 3hrs 55mins

Name
Class
Date
1.

We breathe in carbon dioxide and breathe out oxygen.

a)

True

b)

False

2.

NUMBER 1:

a)

Lungs

b)

Pharynx

c)

Mouth

d)

Alveoli

3.

NUMBER 2:

a)

Pharynx

b)

Bronchi

c)

Alveoli

d)

Lungs

4.

NUMBER 4:

a)

Lungs

b)

Trachea

c)

Mouth

d)

Bronchioles

5.

NUMBER 3:

a)

Pharynx

b)

Trachea

c)

Bronchi

d)

Alveoli

6.

Inside the lungs, the bronchi divide into smaller tubes. At the end of these tubes, there are tiny sacs called...

a)

Pharynx

b)

Trachea

c)

Lungs

d)

Alveoli

7.

When we breathe out, the ____________ leaves our lungs.

a)

Carbon dioxide

b)

Oxygen

8.

Which is the main organ in the respiratory system?

a)

Heart

b)

Stomach

c)

Lungs

d)

Nose

9.

The trachea is a tube that divides into two smaller tubes called _____

a)

Bronchi

b)

Nostrils

c)

Lungs

10.

The air goes down the bronchi

into the ______

a)

Blood vessels

b)

Lungs

c)

Spinal cord

11.

The lungs are two sacks that are protected by our ...

a)

Bronchi

b)

Diaphragm

c)

Ribs

12.

How air travels through the body?

a)

Air enters the nose, it passes to the larynx and then to the trachea.

b)

Air enters the nose, it passes to the trachea and then to the larynx.

13.

Where the Gas Exchange takes place

a)

Lungs

b)

Alveoli

c)

Bronchi

d)

Bronchiloes

14.

Which picture represent the Respiratory System?

a)
b)
c)
d)
15.

What does the respiratory system do?

a)

It takes oxygen we need and it expels carbon dioxide

b)

It moves blood and oxygen.

c)

It eliminates waste substances

d)

It changes food into nutrients

16.

What structure contains the Vocal Cords and allows us to talk?

a)

Larynx

b)

Pharynx

c)

Nostrils

d)

Lungs

17.
What is the tube that is also known as your wind pipe?
a)
esophogus
b)
bronchi
c)
trachea
d)
alveoli
18.
When you breathe, your lungs take in ___ and release ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
19.

The air in your body enter through the....

a)

Larynx

b)

Nasal Cavity

c)

Pharynx

d)

Epiglottis

20.

What is the name of the thin hair in your nose?

(a)