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Circulatory System

Total questions: 21

Worksheet time: 15mins

Name
Class
Date
1.

Where does your heart get oxygen?

a)

Lungs

b)

Mouth

c)

Toes

d)

Fingernails

2.

What takes blood back to the heart?

a)

arteries

b)

veins

c)

capillaries

3.

What are the super small blood vessels called that let the Oxygen out of the blood to the tissues that need it?

a)

capillaries

b)

worm holes

c)

arteries

d)

veins

4.
Carry blood away from heart; mostly oxygen-rich
a)
Arteries
b)
Veins
c)
Capillaries
5.
These blood cells are the protectors and help fight off disease.
a)
Red blood cells
b)
White blood cells
c)
Plasma
d)
Platelets 
6.
This part of blood helps it clot, when you get cut.
a)
Red blood cells
b)
Plasma
c)
Platelets
d)
White blood cells
7.
These blood cells deliver oxygen to the parts of the body.
a)
Red
b)
White
c)
Patelets
d)
Plasma
8.
_______ is made mostly of water and makes up about 55% of the blood
a)
Plasma
b)
Platelets 
c)
Red blood cells
d)
White blood cells
9.

Which side of the heart has the oxygenated blood?

a)

Left

b)

right

c)

both

d)

top

10.
Name this part.
a)
Left ventricle
b)
Pulmonary artery
c)
Right atrium
d)
Pulmonary veins
11.
Name this part.
a)
Pulmonary veins
b)
Left atrium
c)
Aorta
d)
Pulmonary artery
12.
Name this part.
a)
Right atrium
b)
Left ventricle
c)
Right ventricle
d)
Left atrium
13.
Name this part.
a)
Right ventricle
b)
Pulmonary artery
c)
Left ventricle
d)
Right atrium
14.
The arrow indicates the 
a)
Pulmonary vein
b)
Right atrium
c)
Aorta
d)
Pulmonary artery
15.

#9

a)
Left Ventricle
b)
Left Atrium
c)
Left Pulmonary Vein
d)
Left Pulmonary Artery
16.

#2

a)

aorta

b)

superior vena cava

c)

inferior vena cava

d)

valve

17.

#3

a)

right atria

b)

right ventricle

c)

left atria

d)

left ventricle

18.

The flow of deoxygentated blood through the heart is

a)

Vena Cava - right atrium - right ventricle - pulmonary artery

b)

Vena Cava - right ventricle - right atrium - pulmonary artery

c)

Pulmonary vein - left ventricle - left atrium - aorta

d)

Pulmonary vein - left atrium - left ventricle - aorta

19.

The flow of oxygentated blood through the heart is

a)

Vena Cava - right atrium - right ventricle - pulmonary artery

b)

Vena Cava - right ventricle - right atrium - pulmonary artery

c)

Pulmonary vein - left ventricle - left atrium - aorta

d)

Pulmonary vein - left atrium - left ventricle - aorta

20.

The blood enters on the left side of the heart through the ______________ and enters the left atrium. It then passes through the _____________to enter the left ventricle.*

a)

pulmonary artery, mitral valve

b)

pulmonary vein, tricuspid valve

c)

pulmonary artery, aortic valve

d)

. pulmonary vein, bicuspid valve

21.

The blood enters the right side of the heart through the ______________ and enters the right atrium. It then passes through the _____________to enter the right ventricle.

a)

vena cava, mitral valve

b)

vena cava, tricuspid valve

c)

pulmonary artery, aortic valve

d)

pulmonary vein, bicuspid valve