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19 questions
Which type of blood vessel carries blood TO the heart?
arteries
veins
capillaries
What is the main organ of the circulatory system?
Brain
Heart
Stomach
The job of the heart is to . . .
pump blood around the body.
break down food
Deoxygenated blood means that the blood is low in...
Oxygen
Carbon dioxide
As the blood reaches the lungs, what is removed from the blood?
Oxygen
Carbon dioxide
Red blood cells
White blood cells
The part of the blood that carries oxygen is called
Red blood cells
White blood cells
The type of blood vessel that normally carries de-oxygenated blood back to the heart from body cells
arteries
veins
capillaries
The type of blood vessel that normally carries oxygenated blood from the heart to the body cells?
arteries
veins
capillaries
The type of blood vessel where exchange of gases, nutrients, and wastes occurs?
arteries
veins
capillaries
The heart is about the size and shape of your ___.
Hand
Arm
Fist
Foot
____ are the smallest blood vessels.
White blood cells
(a) .
(a) is the liquid part of blood.
(a) help form clots to stop bleeding.
Circle the circulatory system.
The system that makes red blood cells.
nervous
circulatory
respiratory
skeletal
The system that breaks down food into nutrients.
lymphatic
respiratory
nervous
digestive
The system that sends electrical signals to the heart that tell it to beat.
respiratory
lymphatic
nervous
digestive
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