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Worksheets

The Circulatory System

Total questions: 20

Worksheet time: 18mins

Name
Class
Date
1.

In which system of the human body does the heart belong?

a)

circulatory

b)

skeletal

c)

digestive

d)

breathing

2.

Choose the correct option

How many chambers does a Heart contain?

a)

Five chambers

b)

Four Chambers

c)

Three Chambers

d)

None of these

3.

Our circulatory system helps us...

a)

Clean our blood.

b)

Sense the world around us.

c)

Transport nutrients, oxygen and waste around the body.

4.

The Circulatory System is a ________ System.

a)

Transport

b)

Both

c)

Protective

d)

None of these

5.

The heart is _____ size organ.

a)

Small

b)

Fist

c)

Big

d)

None of these

6.

What is called the living pump of human body?

a)

Lungs

b)

Kidneys

c)

Heart

d)

Liver

7.

Which of the following is NOT part of the circulatory system?

a)

heart

b)

blood

c)

bones

d)

blood vessels

8.

Veins carry blood containing carbon dioxide from the body back to the heart.

a)

False

b)

True

9.

Name this part of the circulatory system.

a)

Stomach

b)

Liver

c)

Lung

d)

Heart

10.

Select the three parts of our circulatory system.

a)

Bronchi, trachea and heart.

b)

bones, muscles and heart.

c)

blood, blood vessels and heart.

d)

Nerves, spinal chord and heart.

11.

Name this part of the circulatory system.

a)

Artery

b)

Nerve

c)

Vein

d)

Ureter

12.

What is the function of the red blood cells?

a)

They defend the organism against illnesses

b)

They help in the process of coagulation

c)

They transport oxygen and give blood its color

13.
The cells in the blood that help fight germs and illnesses are the...
a)
red blood cells
b)
platelets
c)
white blood cells
d)
axons
14.

The job of the heart is to . . .

a)

pump blood around the body.

b)

send food to the small intestines.

c)

break down food.

d)

give energy to the body.

15.

The blood leaves the heart at the _____

a)

Ventricles

b)

Atrium

c)

Valve

d)

Capillaries

16.

The left side of the heart pumps blood to the ________

a)

body

b)

lungs

c)

brain

d)

legs

17.

Which does not make up the circulatory system?

a)

heart

b)

blood

c)

lungs

d)

blood vessels

18.

When you run around, your body needs a lot more energy and oxygen.

a)

Yes

b)

No

19.
The main function of the circulatory system is 
a)
To give the body structure and support
b)
Excrete waste
c)
transport blood, nutrients, and gases throughout the body
d)
to transport messages from the body to the brain
20.

The left side of the heart pumps blood to

a)

lungs

b)

bladder

c)

all of your body

d)

heart