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31 questions
What is the main organ of the circulatory system?
small intestine
bone
blood vessels
heart
Arteries carry oxygen rich blood away from the heart.
True
False
The job of the heart is to . . .
pump blood around the body.
send food to the small intestines.
break down food.
give energy to the body.
The heart is about the size and shape of your . . .
head
fist
hand
foot
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,
__________ Carry oxygen rich blood away from heart
Arteries
Veins
Capillaries
What are white blood cells
They are the same a red blood cells, but white
They fight off disease and infection
They carry food to your muscles
they activate when you do exercise
What are platelets?
Very small plates used by woodland creatures and fairies
The blood cells that form clots when you are cut to stop bleeding.
They make your blood thinner when you are out of breath
the take oxygen back to the heart
What is the function of arteries?
Transport deoxygenated blood
Transport oxygenated blood
Site for exchange of materials
What is the function of veins?
Transport deoxygenated blood
Transport oxygenated blood
Site for exchange of materials
Smooth muscles in arteries help
to push blood along through peristalsis.
to prevent the blood vessel from bursting.
to maintain blood pressure.
the blood vessel in elastic recoil in order to push the blood along during diastole.
What is plasma?
only white blood cells
only red blood cells
fluid part of blood
hemoglobin
Which diagram represents an artery?
diagram A
diagram B
diagram C
Which diagram represents a capillary?
diagram A
diagram B
diagram C
Which type of blood vessel is shown?
artery
vein
capillary
What does the thick wall of an artery enable it to do?
stretch and recoil
exchange substances
withstand high-pressure blood
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