Circulatory System Question Preview (ID: 45015)


Circulatory System. TEACHERS: click here for quick copy question ID numbers.

What is the function of circulatory system?
a) deliver oxygen and nutrients to the body's cells and get rid of waste such as carbon dioxide
b) support the body and protect internal organs
c) break down food
d)

What are the main organs of the circulatory system?
a) heart, blood vessels, and blood
b) bones and joints
c) lungs and diaphragm
d)

Which type of blood vessel carries blood with oxygen to the body?
a) artery
b) vein
c) capillary
d)

Which type of blood vessel carries blood without oxygen back to the heart?
a) vein
b) artery
c) capillary
d)

How many chambers are in the heart?
a) 4
b) 3
c) 2
d)

How many valves are in the heart?
a) 4
b) 3
c) 2
d)

What are the chambers of the heart called?
a) atrium and ventricle
b) valve
c) cells
d)

Which part of the blood fights germs and infection?
a) white blood cells
b) red blood cells
c) platelets
d)

Which part of the blood carries oxygen in hemoglobin?
a) red blood cells
b) white blood cells
c) platelets
d)

Which part of the blood sticks together to stop bleeding and becomes a scab?
a) platelets
b) white blood cells
c) plasma
d)

What is the purpose of valves in the heart?
a) To keep blood flowing in one direction
b) To create blood clots
c) to push blood through the heart
d)

How much blood is an adult human body?
a) 5 liters
b) 20 gallons
c) 15 cups
d)

How big is the heart?
a) size of a fist
b) size of a foot
c) size of a softball
d)

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