Font size
WorksheetsThe Circulatory System
Total questions: 86
Worksheet time: 49mins
Our circulatory system helps us...
Clean our blood.
Sense the world around us.
Transport nutrients, oxygen and waste around the body.
Select the three parts of our circulatory system.
Esophagus, trachea and heart.
Arteries, veins and heart.
Nerves, spinal chord and heart.
What does our heart do?
It absorbs water into our bloodstream.
It absorbs oxygen into our bloodstream.
It cleans our blood.
It pumps blood around our body.
Defend the organism against illnesses
What is the function of the platelets?
They give blood its color and they transport oxygen.
Are less abundant and defend the organism against illnesses
Pieces of cells that stops the bleeding. Helps with the process of coagulation.
What is the function of the red blood cells?
They defend the organism against illnesses
They help in the process of coagulation
They transport oxygen and give blood its color
The blood component, platelets, job is what?
Fight infection
Carry oxygen
Blood clotting
Carry nutrients
Choose the correct characteristics of capillaries
Lage lumen
multi-cellular
walls one cell thick
Formed into a network or mesh structure
The circulatory system works together with the _____ to deliver blood to the body's tissues.
lungs
heart
mouth
brain
The three main parts of the circulatory system are
the heart, the blood, and blood vessels
arteries, veins, and capillaries
the 3 types of blood
red cells, white cells, and plasma
The heart works similarly to a
river
joint
pump
hinge
This type of blood vessel carries deoxygenated blood BACK to the heart
arteries
veins
capillaries
plasma
These are the smallest blood vessels that pass blood from the arteries into the tissues and veins
arteries
veins
capillaries
plasma
The type of blood cells that fight off germs and infections
red blood cells
white blood cells
platelets
plasma
Which type of blood vessel carries blood TO the heart?
arteries
veins
capillaries
What is the main organ of the circulatory system?
Brain
Heart
Stomach
The job of the heart is to . . .
pump blood around the body.
break down food
As the blood reaches the lungs, what is removed from the blood?
Oxygen
Carbon dioxide
Red blood cells
White blood cells
The part of the blood that carries oxygen is called
Red blood cells
White blood cells
The type of blood vessel that normally carries de-oxygenated blood back to the heart from body cells
arteries
veins
capillaries
The type of blood vessel that normally carries oxygenated blood from the heart to the body cells?
arteries
veins
capillaries
The type of blood vessel where exchange of gases, nutrients, and wastes occurs?
arteries
veins
capillaries
____ are the smallest blood vessels
Arteries
Veins
Capillaries
The heart is about the size and shape of your . .
Hand
Arm
Fist
Foot
__ is the liquid part of blood.
Red blood cells
White blood cells
Platelets
Plasma
__ help form clots to stop bleeding.
Red blood cells
White blood cells
Platelets
Plasma
A _____ is a blood vessel that carries blood to the heart
blood vessel
artery
vein
capillary
Which of the following organs fits the definition?
•they carry oxygen and nutrients away from your heart to your bodies tissues
veins
arteries
lungs
heart
Which of the following organs fits the definition?
-carry deoxygenated blood from the body to the heart so that the system can renew and be sent to the lungs
heart
arteries
veins
lungs
Arteries, Veins, and capillaries are 3 types of ____
systems
cells
organs
blood vessels
To pump and circulate blood is the work of which organ
Lungs
Liver
Pancreas
Heart
The circulatory system works most closely with which other system?
Respiratory
Excretory
Digestive
Nervous
_____________ are very tiny blood vessels connecting the arteries and veins.
Capillaries
Veins
Arteries
Vena Cava
The three main parts of the circulatory system are
the heart, the blood, and blood vessels
arteries, veins, and capillaries
the 3 types of blood
red cells, white cells, and plasma
The heart works similarly to a
river
joint
pump
hinge
Blood is made up of
Plasma
Blood cells - red and white
Platelets
All of the above
How does the heart work?
It pumps blood first to the lungs, back to the heart and then around the rest of the body.
It pumps blood first to the rest of the body, back to the lungs and then to the heart.
It pumps blood around the rest of the body, back to the heart and then to the lungs,
About how big is the human heart?
the size of your nose
the size of your foot
the size of your fist
the size of your ear
What is blood clotting caused by?
Platelets
Hemoglobin
Lymphocytes
Plasma
Doctor: The three main parts in the circulatory system are:
Organs
The kidneys, the capillaries and blood
The heart, blood vessels, and blood
The heart is in charge of
exchanging carbon dioxide with oxygen
processing liquids
pumping the blood throughout the body
join arteries and veins. Very narrow with thin walls to allow substances like oxygen and food to move through them
capillaries
veins
arteries
Carries blood containing wastes, such as carbon dioxide
artery
capillaries
veins
Carries blood containing food and oxygen away from the heart to the body
Arteries
Veins
Capillaries
Which type of blood vessel returns blood TO the heart
artery
vein
capillary
macrophage
Which blood vessel allows for exchange of materials from blood to cells?
artery
vein
capillary
macrophage
The slowest moving blood is found in the
arteries
veins
capillaries
heart
A heart attack is caused by
heart muscle not getting blood supply
the brain not telling the heart to beat
the valve in the heart not closing all the way
the top of the heart contracting before the bottom of the heart
Which is not a part of the circulatory system?
Heart
Veins
Arteries
Brain
What is the function of your heart?
Moves the blood
Transports the water
Digests food
to do running
How many chambers does your heart have?
Three
Four
Eleven
One
Your hearts are the same size as .....
Your fist
Your face
Your foot
Your ears
How many times your heart beats every day?
100 times/day
10.000 times/day
100.000 times/day
uncountable
Is it true or false?
When you run your heart beats slowly!
False
True
Is it true or false?
When you sleep your heart beats slowly!
False
True
Where does your heart send oxygen?
to lungs only
to head only
to different parts of your body
to foot only
When you run, your heart beats quickly because?
your body tired
your body needs more oxygen
your body needs more food
your body needs more water
Is it true or false?
When your heartbeat is slow, your pulse is slow!
False
True
Is it true or false?
When your heartbeat is quick, your pulse is slow!
False
True
Is it true or false?
When we exercise, we not only train our body but also our heart.
False
True
Which image represents the human heart?
What chambers are located on each side of the heart?
2 ventricles
2 atriums
1 atrium and 1 ventricle
Only one ventricle
What substance does the heart pump throughout the body?
Water
Blood
Acid
Serum
The right side of the heart contains blood that is:
Rich in oxygen
Rich in Carbon dioxide
Poor in oxygen
Poor in carbon dioxide
The left side of the heart contains blood that is
Rich in oxygen
Rich in carbon dioxide
Poor in oxygen
poor in carbon dioxide
Where does the blood receive its oxygen from?
Pancreas
Liver
Heart
Lungs
What do the lungs provide the blood with?
oxygen
blood
hydrogen
carbon dioxide
What vessels carry the blood away from the heart?
arteries
veins
an aorta
capillaries
What vessels carry the blood back to the heart?
arteries
veins
an aorta
capillaries
What are the thinnest blood vessels called?
arteries
veins
capillaries
an aorta
What is biggest artery in a human body?
arteries
veins
capillaries
an aorta
What is the total length of blood vessels in a human body?
6 miles
60 miles
6,000 miles
60,000 miles
Blood travels TO the heart through the ______.
lungs
veins
arteries
oxygen
The average human heart is about the size of _____.
a lemon
a human fist
a softball
a football
What is the function of valves in the heart?
To create pressure in the ventricles
To create pressure in the atria
To prevent the back flow of blood
To initiate the heartbeat
