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Worksheets

Circulatory System

Total questions: 18

Worksheet time: 11mins

Name
Class
Date
1.

How many chambers does the heart have?

a)

-4

b)

5

c)

4

d)

2

2.

What are the tiniest blood vessels?

a)

Veins

b)

Red blood cells

c)

White blood cells

d)

Capillaries

3.

What do white blood cells do?

a)

Goes through the veins

b)

Makes scabs

c)

Attack viruses

d)

Contains hemoglobin that holds oxygen

4.

What is the function of the circulatory system?

a)

to carry oxygen and nutrients to cells and remove waste products

b)

to exchange gases with the atmosphere

c)

to send and receive messages

d)

to break down and release nutrients from food

5.

Which two systems work together to provide cells with oxygen and remove carbon dioxide from them?

a)

nervous and excretory

b)

nervous and circulatory

c)

respiratory and excretory

d)

respiratory and circulatory

6.

What is the correct path of blood through the heart and lungs?

a)

Vena cava, right atrium, right ventricle, pulmonary arteries, lungs, pulmonary veins, left atrium, left ventricle, aorta, body back to vena cava

b)

Vena cava, right atrium, right ventricle, pulmonary arteries, lungs, left atrium, left ventricle, aorta, body back to vena cava

c)

Vena cava, right atrium, right ventricle, pulmonary arteries, lungs, pulmonary veins, left atrium, left ventricle, aorta, body back to pulmonary arteries

d)

Vena cava, right ventricle, pulmonary arteries, lungs, pulmonary veins, left ventricle, aorta, body back to vena cava

7.

What blood vessels carry blood back to the heart?

a)

veins

b)

xylem

c)

neurons

d)

arteries

8.

Which blood vessels carry blood back away from the heart? 

a)

xylem 

b)

veins 

c)

neurons

d)

arteries

9.

What organ is responsible for pumping blood?

a)

Kidneys

b)

Heart

c)

Head

d)

Liver

10.

Which blood vessel allows the exchange of gases within tissues? 

a)

Vein

b)

Capillary

c)

Vena cava

d)

Aorta

11.

The beating you hear from your heart is...

a)

Your ears playing tricks on you

b)

Valves closing

c)

The heart skipping beats

d)

The blood going the wrong direction

12.

What part of the heart acts like doors to control the blood flow?

a)

valves

b)

chambers

c)

kidneys

d)

pulmonary veins

13.

When does the oxygen enter the blood?

a)

In the capalaries

b)

In the aorta before it goes through the body

c)

In the lungs

d)

In the vena cava

14.

Which blood vessel allows the exchange of gasses within tissues? 

a)

vein

b)

vena cava

c)

capillary

d)

aorta

15.

What is the main function of the heart?

a)

to exchange gases

b)

to remove waste materials from the body

c)

to produce red blood cells

d)

to move blood through the body

16.

Which is the correct path of blood circulation through the body?

a)

Blood flows from the lungs to all parts of the body and returns to the heart through the vena cava.

b)

Blood flows from the aorta to all parts of the body and returns to the heart through the vena cava.

c)

Blood flows from the lungs to all parts of the body and returns to the heart through the aorta.

d)

Blood flows from the vena cava to all parts of the body and returns to the heart through the aorta.

17.

Match the word with it's meaning:

Plasma

a)

  Attack Viruses

b)

Create scabs

c)

Liquid that materials in the blood travel through

d)

Contains hemoglobin that holds oxygen

18.

What do platelets do?

a)

      Attack Viruses.

b)

Create scabs

c)

Contains hemoglobin that holds oxygen.

d)

    

Liquid that materials in the blood travel through.