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Circulatory System - JC

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.
Which is responsible for providing oxygen to cells?
a)
respiratory system
b)
circulatory system
c)
muscular system
d)
nervous system
2.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

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

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.

7.

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,

8.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
9.
______________ are the second largest blood vessel. 
a)
Arteries
b)
Veins
c)
Capillaries
10.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
11.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat. 
a)
respiratory 
b)
digestive
c)
skeletal
d)
nervous
12.
This chamber of the heart RECEIVES blood returning from the body
a)
Right Atrium
b)
Right Ventricle
c)
Left Atrium
d)
Left Ventricle
13.
Structure(s) that keep the blood flowing in one direction.
a)
Valve(s)
b)
Septum(s)
c)
Neuron(s)
d)
Bronchiole(s)
14.

_______ function in the life-saving process of clotting blood.

a)

Phagocytes

b)

Leucocytes

c)

Erythrocytes

d)

Platelets

15.

True or false:

Arteries always carry oxygenated blood.

a)

True

b)

False

16.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
17.

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

18.
The liquid part of blood that makes up 55% of its composition?
a)
Plasma
b)
Platelets
c)
White blood cells
d)
Red blood cells
19.
Which of the following delivers oxygen to cells?
a)
Red Blood cells
b)
White blood cells
c)
Platelets
d)
Plasma
20.

Which spelling is correct?

a)

Haemoglobin

b)

Heamoglobin

c)

Hemoglobin

d)

Hemaglobin

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