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Respiratory system

Total questions: 28

Worksheet time: 15mins

Name
Class
Date
1.

What is the 1st organ in the Respiratory system

a)

mouth

b)

nose

c)

lungs

2.

When you breathe "in", you take in

a)

carbon dioxide

b)

oxygen

c)

nitrogen

3.

The Main tube that takes air to your lungs

a)

bronchi

b)

esophagus

c)

trachea

4.

What is the Scientific Name for Air Sacs

a)

bronchi

b)

alveoli

c)

trachea

5.

What type of air do we breath "out"

a)

carbon dioxide

b)

oxygen

c)

nitrogen

6.

Large, dome like muscle under your lungs

a)

nose

b)

Trachea

c)

Diaphragm

7.

When we breathe in...................enters our lungs and passes into the blood.

a)

oxygen

b)

carbon dioxide

8.

When we breathe out , ................. leaves our body.

a)

oxygen

b)

carbon dioxide

9.

Inside the lungs there are lots of little sacks called.......

Here, oxygen passes into the blood and carbon dioxide leaves the blood.

a)

lungs

b)

alveoli

10.

We breathe in carbon dioxide and breathe out oxygen

a)

True

b)

False

11.

When we breath in the diaphragm...

a)

Contracts

b)

Relaxes

12.

When we breathe out the diaphragm...

a)

shrinks (contract)

b)

expands ( relax )

13.
What are these?
a)
Stomach
b)
Esophagus
c)
Lungs
d)
Mouth
14.

The respiratory system is made up of ___

a)

The heart, blood, trachea and bronchi

b)

The brain, muscles and lungs

c)

The nose, pharynx, trachea, lungs and diaphragm.

15.

The respiratory system takes in oxygen and gives out _____

a)

Carbon dioxide

b)

More oxygen

c)

Air and nutrients

16.

When we inhale, the air

a)

Goes inside the lungs

b)

Goes outside the lungs

17.

Which is NOT a part of the respiratory system?

a)

trachea

b)

stomach

c)

lungs

18.

After we breathe in the air, it goes through our _______ before it gets to our lungs.

a)

stomach

b)

trachea

c)

intestines

d)

kidney

19.

Our lungs carry ______ to our blood!

a)

candy

b)

oxygen

c)

carbon dioxide

d)

blood

20.

Which one is the respiratory system?

a)
b)
c)
21.

How many lungs do you have in your body?

a)

1

b)

2

c)

3

d)

4

22.

When you _______________, air enters your body through your nose or mouth.

a)

blink

b)

listen

c)

inhale

d)

exhale

23.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
24.

The only externally visible part of the respiratory system

a)

lungs

b)

Nose

c)

Pharynx

25.
Number 6 is pointing to which organ of the Respiratory System
a)
Nose
b)
Lung
c)
Diaphragm
d)
Bronchi Tube
26.

fish have .............. to inhale oxygen

a)

Lungs

b)

Nose

c)

Gills

27.

Fish inhale oxygen from

a)

water

b)

air

c)

sky

28.

oxygen gas reaches all the body part of the fish through the ............................... present in its gills.

a)

Blood vessels

b)

air sacs

c)

fins