Grade 5 Human Body Systems: Circulatory System Study Guide
Test date
Name
1. Name the largest artery in the body.
aorta
2. What is the name of the tiny blood vessels that connect the veins and arteries and allow
oxygen and nutrients to pass through?
capillaries
3. The veins that bring the deoxygenated blood from the body into the heart are the
Superior &
Inferior
vena
cava
4. The blood vessels that carry blood to and from the lungs are the
veins
&
arteries
Pulmonary
5. Where does the blood pick up oxygen?
The Lungs
6. The main organ of the circulatory system and hardest working muscle in the body is
The heart
.
7. What happens to your heart rate as you continue to exercise?
It beats faster.
8. Why does the heart work harder when you exercise?
To get more oxygen to your cells and muscles.
9. As your heart works harder, what happens to your breathing rate?
It increases
10. List 3 things you can do to keep your heart healthy.
Exercise, eat right, don’t get overweight, and don’t smoke.
Path of Blood through the Heart – Fill in the blanks with the correct word from the word
bank to describe the path that blood follows through the heart.
Word Bank: Aorta, Lungs, Right Ventricle, Left Ventricle, Vena Cava, Right Atrium, Left
Atrium, Pulmonary Vein, Pulmonary Artery, Oxygen
First the blood enters the heart through the Superior and Inferior _vena cava_. It is pumped
into the _right atrium_ and then down into the _right ventricle_. Blood briefly leaves the
heart through the _pulmonary artery_ where it is pumped into the __lungs___ to get
_oxygen___. It comes back to the heart through the __pulmonary vein__ and pumped into
the _left atrium_. It then goes down into the _left ventricle_ and finally leaves the heart
through the __aorta___ to be pumped through the rest of the body.
Matching: Write the letter of the correct definition from Column 2 on the line to the left of
its matching vocabulary word in Column 1.
Column 1
13. _F__ White blood cells
14. _C_ Red blood cells
15. _A__ Platelets
16. _B__ Arteries
17. _E__ Plasma
18. _D__ Veins
A.
B.
C.
D.
E.
F.
Column 2
Helps form scabs by clotting blood
Carries blood away from the heart
Blood component that carries oxygen to all
parts of the body
Carries blood to the heart
The liquid part of blood that carries nutrients
Fights germs in body that can cause disease
Label the major parts of the human heart. Identify the part indicated by each letter and write
your answer on the lines below the diagram. Use these words:
Left Atrium, Left Ventricle, Right Atrium, Right Ventricle, Aorta, Superior and Inferior
Vena Cava, Pulmonary Veins, Pulmonary Arteries
A __Aorta________
E ____Right atrium______________
Clipart courtesy of
3DScience.com
B __Pulmonary Arteries___________ F ____Left ventricle____________
C __Right Ventricle_____________ G ____Pulmonary vein______________
D _Superior and Inferior Vena Cava_ H ____Left Atrium__________