Answer each question by
clicking on the link above it.
What is your largest artery
Do arteries carry blood away from or to the heart?
About how thick are the
how thin are the smallest arteries? What are these thinnest arteries
Do veins carry
blood away from or to the heart?
What are the thinnest veins called?
Why don't veins have to be as
strong as arteries?
Circulatory System (GO
TO THE FUN FACTS SECTION)
Describe the color of the blood in your
circulatory system as it relates to oxygen content.
where your heart is located in your body.
Circulatory System Amazing Facts
About how many times
does a heart beat during an average lifespan?
About how many blood cells die
each second and how many new ones are regenerated?
About how long does it take
for a red blood cell to circle the whole body?
Where do red blood cells
originally come from?
About how many times do they circulate in the body before they die?
About how long do red
blood cells live?
American Heart Association : Heart
About how big is your
In an average
life time, about how many times does a heart beat?
If all of your blood vessels
were laid end to end, how far would they extend?
much blood do adults have?
What is the
main function of white blood cells?
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