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​B2: Quiz 8
1) Mammals have a double circulatory system; say where blood travels on both of these circulatory systems.
 
2) What are the 3 different parts that make up the circulatory system? Give their role as well.
 
3)
a) What is oxygenated blood?
b) What is deoxygenated blood?
 
4) A very basic diagram of the circulatory system is shown below.
Picture
a)
i) Discuss the gas exchanges that take place in the lungs?
ii)  Discuss the gas exchanges that take place at tissue in the body (bicep).
b) Say whether blood is oxygenated or deoxygenated for the 4 numbers on the above diagram.
 
5) Which circulatory system has the greatest blood pressure; is it the one that goes from the heart to the lungs and back, or the one that goes from the heart to the rest of the body and back?
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