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Circulatory System
Test Description: Circulatory system
Instructions: Answer all questions to get your test result.
1) What is the function of circulatory system?
A
support the body and protect internal organs
B
deliver oxygen and nutrients to the body's cells and get rid of waste such as carbon dioxide
C
break down food
2) What are the main organs of the circulatory system?
A
bones and joints
B
heart, blood vessels, and blood
C
lungs and diaphragm
3) Which type of blood vessel carries blood with oxygen to the body?
A
vein
B
artery
C
capillary
4) Which type of blood vessel carries blood without oxygen back to the heart?
A
artery
B
vein
C
capillary
5) How many chambers are in the heart?
A
4
B
2
C
3
6) How many valves are in the heart?
A
3
B
2
C
4
7) What are the chambers of the heart called?
A
atrium and ventricle
B
cells
C
valve
8) Which part of the blood fights germs and infection?
A
platelets
B
white blood cells
C
red blood cells
9) Which part of the blood carries oxygen in hemoglobin?
A
platelets
B
red blood cells
C
white blood cells
10) Which part of the blood sticks together to stop bleeding and becomes a scab?
A
white blood cells
B
plasma
C
platelets
11) What is the purpose of valves in the heart?
A
to push blood through the heart
B
To keep blood flowing in one direction
C
To create blood clots
12) How much blood is an adult human body?
A
5 liters
B
20 gallons
C
15 cups
13) How big is the heart?
A
size of a softball
B
size of a fist
C
size of a foot
*select an answer for all questions
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