
Circulatory System Quiz Version A
Authored by Lindsey Redman
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following prevents back-flow of blood?
ventricle
valve
SA node
artery
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The primary organ of the circulatory system is the ___?
lungs
skin
heart
brain
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The function of the heart is to ____________?
carry signals to the brain
prevent infection
eliminate waste from the body
pump blood through your circulatory system
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Capillaries are called _______ vessels because this is where oxygen and carbon dioxide are transferred into tissues.
altering
exchange
performance
export
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following blood vessels has the thickest, strongest, most elastic walls?
arteries
capillaries
veins
venules
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these are NOT one of the 4 components of blood?
Oxygen
Plasma
Platelets
Red blood cells
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which chamber of the heart pumps oxygen-poor blood to the lungs, by going directly to the pulmonary arteries?
Left atrium
Left ventricle
Right atrium
Right ventricle
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