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KS3 SCIENCE: CIRCULATORY SYSTEM

Total questions: 80

Worksheet time: 42mins

Name
Class
Date
1.

Delivers oxygen to your body cells. Made in bone marrow.

a)

white blood cell

b)

red blood cell

c)

respiratory system

d)

lungs

2.

Fights disease and infection. Made by the lymphatic system.

a)

white blood cells

b)

red blood cells

c)

circulatory system

d)

blood

3.

This organ pumps blood through your body.

a)

heart

b)

artery

c)

vein

d)

capillaries

4.

These blood vessels take oxygenated blood to the body cells.

a)

heart

b)

artery

c)

vein

d)

capillary

5.

These blood vessels carry deoxygenated blood to the lungs.

a)

heart

b)

capillaries

c)

veins

d)

arteries

6.

Small blood vessels that diffuse oxygen, carbon dioxide, and nutrients.

a)

heart

b)

arteries

c)

veins

d)

capillaries

7.

The system that makes red blood cells.

a)

nervous

b)

circulatory

c)

respiratory

d)

skeletal

8.

The system that delivers oxygen and gets rid of carbon dioxide.

a)

respiratory

b)

skeletal

c)

lymphatic

d)

digestive

9.

The system that sends electrical signals to the heart that tell it to beat.

a)

respiratory

b)

lymphatic

c)

nervous

d)

digestive

10.

The system that breaks down food into nutrients.

a)

lymphatic

b)

respiratory

c)

nervous

d)

digestive

11.

The system that makes white blood cells.

a)

lymphatic

b)

respiratory

c)

nervous

d)

digestive

12.

A disease in which red blood cells are mis-shaped and clog capillaries.

a)

leukemia

b)

heart disease

c)

sickle-cell anemia

d)

hemophilia

13.

Causes an overproduction of white blood cells that crowd the blood.

a)

leukemia

b)

heart disease

c)

hemophilia

d)

sickle-cell anemia

14.

Cholesterol and plaque builds up on vessel walls and causes heart attack and stroke.

a)

leukemia

b)

heart disease

c)

hemophilia

d)

sickle-cell anemia

15.

A hereditary disease where blood does not clot to stop bleeding.

a)

hemophilia

b)

heart disease

c)

sickle-cell anemia

d)

leukemia

16.

The 3 main functions of the Circulatory System

a)

break down food, remove waste, make blood cells

b)

react to stimuli, grow, adapt

c)

deliver materials, remove waste, and fight infection

17.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

18.
How many types of blood vessels are in our body?
a)
1
b)
2
c)
3
d)
4
19.

Veins carry oxygen poor blood back to the heart.

a)

False

b)

True

20.

Arteries carry oxygen rich blood away from the heart.

a)

True

b)

False

21.

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.

22.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
23.
______________ are the second largest blood vessel. 
a)
Arteries
b)
Veins
c)
Capillaries
24.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
25.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat. 
a)
respiratory 
b)
digestive
c)
skeletal
d)
nervous
26.
The heart has ___ chambers.
a)
1
b)
2
c)
3
d)
4
27.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
28.
Which is the correct definition of the Circulatory system?
a)
The system fights disease so the body stays healthy.
b)
The system that circulates blood and oxygen through the body, consisting of the heart,blood vessels,and blood.
c)
Breaks down food into smaller pieces and absorbs those nutrients into the body.
d)
Provides shape and structure for the body.
29.
What function does the heart do?
a)
Protects organs and produces red blood cells.
b)
Generates heat.
c)
Breaks down food into nutrients.
d)
The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.
30.
arteries, veins, and capillaries are three types of __________
a)
heart valves
b)
blood vessels
c)
cells
d)
veins
31.
What is the Circulatory System also known as?
a)
The heart
b)
Cardiovascular System
c)
Nervous System
d)
Aorta
32.
What do Red-Blood cells do?
a)
Carry oxygen from the lungs to the body cells and  transport carbon dioxide from the cells back to the lungs
b)
keeps blood flowing in one direction to the heart and prevent blood from flowing backwards
c)
Collects  blood from the capillaries and drain it into the veins
d)
Bring nutriients to the cells and carries away waste materials.
33.
What does blood do?
a)
Carries Water to cells
b)
Carries Oxygen to cells
c)
Carries Food to cells
d)
All of the above 
34.
What is the heart ? 
a)
meaty organ 
b)
a small metal spike with a broadened flat head,
c)
organ of soft nervous tissue 
d)
muscular organ
35.
What does the circulatory system do? 
a)
pumps blood through the whole body 
b)
pumps blood to the brain 
c)
pumps blood to the lungs
d)
pumps blood
36.
Carbon dioxide is considered a _________________
a)
food
b)
waste
c)
energy
d)
fun party favor
37.

Your heart is about the size of your __________.

a)

mouth

b)

fist

c)

show

38.

Blood carries ____________ to the heart.

a)

vitamins

b)

germs

c)

oxygen

39.

Your heart pumps blood throughout your entire body through little tubes called _____________.

a)

veins

b)

arteries

c)

hoses

40.

Blood is carried back to your heart in little tubes called ____________.

a)

veins

b)

arteries

c)

hoses

41.

What does circulate mean?

a)

pump blood

b)

beat quickly

c)

go around and around

42.

You can feel your heart beating when you feel your _____________.

a)

pulse

b)

breathing

c)

stomach growling

43.

Your heart is a _____________.

a)

tube

b)

muscle

c)

vein

44.

Which is NOT a way to exercise your heart?

a)

Running

b)

Sitting on the couch

c)

Swimming

45.

Which is a good way to keep your heart healthy?

a)

Eating healthy foods

b)

Playing video games

c)

Eating greasy foods

46.

Which describes all the parts of the circulatory system?

a)

heart, lungs, stomach, muscles

b)

heart, blood, arteries, and veins

c)

bones, skin, hair

47.

Which of the following is a connection between the circulatory system and the muscular system?

a)

the heart is composed of cardiac muscle

b)

the heart makes calcium to give to muscles

c)

muscles create blood cells that get circulated through body

d)

the two systems are not connected

48.

Which of the following is NOT a function of the circulatory system?

a)

circulate blood

b)

regulate calcium production

c)

carry nutrients and hormones through blood stream

d)

deliver oxygen to tissues

49.

How does exercise help your circulatory system?

a)

makes bones strong

b)

lifting weights makes skeletal muscles strong

c)

it wont help because it will keep you up at night

d)

heart muscle will be strong and better pump blood

50.
What part of blood is responsible for carrying oxygen and carbon dioxide to body cells?
a)
Red Blood Cells
b)
White Blood Cells
c)
Platelets
d)
Plasma
51.

Veins are blood vessels containing blood going to the heart

a)

True

b)

False

52.

Arteries are blood vessels with blood flowing from the heart

a)

True

b)

False

53.

In diagrams, the blue blood shows that the blood is carrying

a)

Oxygen

b)

Carbon dioxide

54.

In diagrams, the red blood shows that the blood is carrying

a)

Carbon Dioxide

b)

Oxygen

55.

The blood obtains the oxygen from which organ?

a)

Brain

b)

Lungs

c)

Heart

d)

Stomach

56.

The first stop of the blood in the heart is the...

a)

Left Ventricle

b)

Left Atrium

c)

Right Atrium

d)

Right Ventricle

57.

The purpose of the valves is to keep the blood flowing in the right direction

a)

True

b)

False

58.

After the blood leaves the right atrium, it goes to the...

a)

Right Ventricle

b)

Right Atrium

c)

Left Ventricle

d)

Left Atrium

59.

After the right ventricle, the blood goes through the pulmonary artery to...

a)

Lungs

b)

Heart

60.

In the lungs, the blood gets rid of...

a)

Oxygen

b)

Carbon Dioxide

61.

After the blood gets oxygen from the lungs, it goes through the pulmonary veins to the heart's....

a)

Right Atrium

b)

Left Ventricle

c)

Right Ventricle

d)

Left Atrium

62.

After the left atrium, the blood goes through the mitral valve to the...

a)

Left Atrium

b)

Left Ventricle

c)

Right Atrium

d)

Right Ventrical

63.

Lastly, the oxygenated blood goes through the ___________ to the rest of the body.

a)

Aorta

b)

Vena Cava

64.

What do all organisms need to survive?

a)

energy

b)

blood

c)

carbon dioxide

d)

soil

65.

The FREQUENCY of heart contractions is...

a)

heart rate

b)

blood pressure

c)

respiratory rate

d)

voluntary muscle contraction

66.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
67.
Identify
a)
Pulmonary veins
b)
Pulmonary artery
c)
Aorta
d)
Vena cava
68.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
69.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
70.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
71.
How many valves are in the heart?
a)
3
b)
4
c)
5
d)
6
72.
The lower chambers of the heart are known as...
a)
valves
b)
ventricles
c)
atria
d)
septum
73.
What are the four blood types?
a)
A
b)
B
c)
AB
d)
O
e)
All are correct
74.
What do the arteries do?
a)
pumps blood to the heart
b)
pumps blood to and from the heart
c)
carry's blood away from the heart 
d)
a muscle 
75.
Your blood is made up of which of the following...
a)
plasma, red blood cells, blue blood cells
b)
white and red blood cells
c)
plasma and platelets
d)
plasma, red blood cells, white blood cells, and platelets
76.

When the cardiac muscle is trained, the cardiac output will

a)

decrease

b)

increase

c)

stay the same

77.

Formed in the bone marrow, they are small cells that have important function of clotting of the blood

a)

white blood cells

b)

red blood cells

c)

platelets

d)

leukocytes

78.

White blood cells

a)

are mostly water and transport substances around the body

b)

carry oxygen around the body

c)

protect the body from disease

d)

clot the blood

79.

Blood is poured into the right atrium through

a)

vena cava

b)

Pulmonary vein

c)

aorta

d)

Pulmonary artery

80.

Which of the following carries deoxygenated blood?

a)

pulmonary vein

b)

pulmonary artery

c)

aorta

d)

coronary artery

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