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Year 6 - The Circulatory System

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

What is the main function of the heart?

a)

To filter toxins from the blood.

b)

To pump blood throughout the body.

c)

To produce hormones for digestion.

d)

To regulate body temperature.

2.

Name the three types of blood vessels.

a)

arteries, veins, lymphatics

b)

arteries, capillaries, blood

c)

arteries, veins, capillaries

d)

veins, capillaries, plasma

3.

What is the process of blood circulation called?

a)

Respiration

b)

Circulation

c)

Digestion

d)

Excretion

4.

List the main parts of the circulatory system.

a)

Heart, blood vessels, blood

b)

Lungs, kidneys, liver

c)

Brain, spinal cord, nerves

d)

Stomach, intestines, pancreas

5.

What is the function of arteries?

a)

The function of arteries is to transport oxygenated blood away from the heart to the body.

b)

To transport deoxygenated blood to the heart.

c)

To filter waste products from the blood.

d)

To absorb nutrients from the digestive system.

6.

What role do veins play in the circulatory system?

a)

Veins carry deoxygenated blood back to the heart.

b)

Veins filter toxins from the blood before it reaches the heart.

c)

Veins are responsible for pumping blood throughout the body.

d)

Veins transport oxygenated blood away from the heart.

7.

What is the purpose of capillaries?

a)

To transport oxygen from the lungs to the heart.

b)

To store nutrients for the body.

c)

To produce red blood cells in the bone marrow.

d)

The purpose of capillaries is to enable the exchange of substances between blood and surrounding tissues.

8.

How does the heart pump blood throughout the body?

a)

The heart pumps blood by using electrical signals to attract blood cells.

b)

The heart pumps blood by contracting and relaxing, moving blood through the circulatory system.

c)

The heart pumps blood by expanding and contracting the lungs.

d)

The heart pumps blood by filtering it through the lungs.

9.

What is the difference between oxygenated and deoxygenated blood?

a)

Oxygenated blood has a blue color, while deoxygenated blood is red.

b)

Oxygenated blood is produced in the liver, while deoxygenated blood is produced in the lungs.

c)

Oxygenated blood contains high levels of oxygen, while deoxygenated blood contains low levels of oxygen.

d)

Oxygenated blood is found in veins, while deoxygenated blood is found in arteries.

10.

Why is the circulatory system important for the body?

a)

It regulates body temperature.

b)

It produces hormones for growth.

c)

It helps in digestion of food.

d)

The circulatory system is important for delivering oxygen and nutrients to cells and removing waste.

11.

How does blood return to the heart after circulating?

a)

Blood returns to the heart through the arteries.

b)

Blood returns to the heart through the veins.

c)

Blood returns to the heart through the lymphatic system.

d)

Blood returns to the heart via the capillaries.

12.

What happens to blood when it reaches the lungs?

a)

Blood releases carbon dioxide and absorbs oxygen.

b)

Blood is filtered and cleansed of all nutrients.

c)

Blood absorbs carbon dioxide and releases oxygen.

d)

Blood becomes thicker and less oxygenated.