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JC CIRCULATORY SYSTEM

Total questions: 25

Worksheet time: 15mins

Name
Class
Date
1.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

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

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.

4.

Arteries carry oxygen rich blood away from the heart.

a)

True

b)

False

5.

Veins carry oxygen poor blood back to the heart.

a)

False

b)

True

6.

How does the heart work?

a)

It pumps blood first to the lungs, back to the heart and then around the rest of the body.

b)

It pumps blood first to the rest of the body, back to the lungs and then to the heart.

c)

It pumps blood around the rest of the body, back to the heart and then to the lungs,

7.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
8.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
9.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat. 
a)
respiratory 
b)
digestive
c)
skeletal
d)
nervous
10.
Structure(s) that keep the blood flowing in one direction.
a)
Valve(s)
b)
Septum(s)
c)
Neuron(s)
d)
Bronchiole(s)
11.

What is the straw-yellow liquid that makes up blood called?

a)

red blood cell

b)

white blood cell

c)

platelets

d)

plasma

12.

The job of the ______________________ is to transport oxygen to every cell in the body.

a)

red blood cells

b)

white blood cells

c)

platelets

d)

plasma

13.

The job of the ________________________ is to fight infection

a)

red blood cell

b)

white blood cell

c)

platelets

d)

plasma

14.

The job of the ________________________ is to help blood to clot whenever a blood vessel gets damaged.

a)

red blood cells

b)

white blood cells

c)

platelets

d)

plasma

15.

The type of muscle in the heart is known as _______________ muscle.

a)

celiac

b)

cillary

c)

cardiac

16.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
17.

Identify 1

a)

Pulmonary Vein

b)

Pulmonary Artery

c)

Aorta

d)

Vena Cava

18.

Where does the blood go when it leaves blood vessel 9?

a)

Lungs

b)

Body

c)

Liver

d)

Stomach

19.

Which Artery pumps oxygenated blood around the body?

a)

1

b)

9

c)

8

d)

7

20.

What are the top champers called (2 and 6)

a)

Atrium

b)

Ventricles

21.

What is the name of blood Vessel 9?

a)

Vena Cava

b)

Pulmonary Artery

c)

Pulmonary Vein

d)

Aorta

22.

What does Deoxygenated mean?

a)

Oxygen-rich

b)

Blood flow

c)

Oxygen-poor

d)

Water Flow

23.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
24.
Which is NOT a function of the circulatory system?
a)
deliver O2 and nutrients to cells
b)
remove CO2 and wastes from cells
c)
break down carbohydrates into glucose
d)
transport other materials through body
25.

Heart rate is measure in

a)

beats per second

b)

beats per minute

c)

beats per hour

d)

beats per day