wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

The Circulatory System

Total questions: 23

Worksheet time: 13mins

Name
Class
Date
1.
Your heart has _____ chambers
a)
1
b)
2
c)
3
d)
4
2.
_________ Carry blood away from the heart to various organs
a)
Arteries
b)
Capillaries
c)
Veins
3.
__________ Very small tubes that connect arteries to veins; the smallest blood vessels.
a)
Veins
b)
Capillaries 
c)
Arteries
4.
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 
5.
What is the main organ in the circulatory system?
a)
vein
b)
lung
c)
heart
d)
aorta 
6.
What is the function of the heart?
a)
To pump blood around the body
b)
To remove oxygen from the blood
c)
To allow blood to flow through it 
d)
To breath
7.
How many types of blood vessels are in our body?
a)
1
b)
2
c)
3
d)
4
8.
Veins carry oxygen poor blood back to the heart.
a)
False
b)
True
9.
Carbon dioxide is considered a _________________
a)
food
b)
waste
c)
energy
d)
fun party favor
10.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
11.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
12.
Red blood cells transport __________ around our body.
a)
oxygen
b)
plasma
c)
bones
d)
cardiac muscles
13.
How long does it take to circulate 5 liters of blood through out the body
a)
2 days
b)
5 hours
c)
1 day
d)
1 hour
14.
What is the purpose of white blood cells?
a)
carry oxygen
b)
fight pathogens
c)
help the kidneys
d)
identifies blood type
15.
What is a pacemaker?
a)
Electronic device used to help the heart beat regularly
b)
To help kidneys filtrate blood
c)
To measure your blood pressure
16.
What are the main parts of the cardiovascular system?
a)
heart and lungs 
b)
blood, blood vessels, and heart
c)
blood, heart, and brain
d)
veins, arteries, lungs, and heart
17.
What do red blood cells do?
a)
Carry oxygen
b)
Fight infection and disease
c)
Produce carbon dioxide 
18.
What type of muscle do you find in the heart?
a)
smooth muscle
b)
Skeletal muscle
c)
cardiac muscle
19.
Is the heart able to increase in size and strength like a normal muscle?
a)
yes 
b)
no
20.
Red blood cells are produced in the...
a)
pancreas
b)
Heart
c)
Muscles
d)
Bone marrow
21.
What is the main function of the heart ? 
a)
The heart circulates blood and oxygen throughout the body.
b)
The heart is the control centers for all body activities.
c)
The heart gets rid of the wastes in your body.
22.
The bottom chambers of the heart are called
a)
ventricles
b)
atria
c)
vena cava
d)
valves
23.
This organ filters waste from the blood.
a)
heart
b)
stomach
c)
kidney
d)
lung