Arteries take blood from the heart, while veins bring blood back to the heart. Because of this their construction differs.
Since this is not my area of expertise, I searched Google under the key words "veins vs. arteries" to get these possible sources:
https://www.google.com/search?client=safari&rls=en&q=veins+vs.+arteries&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
what are the differences between a vein and an artery? Give your answer with reference to specific examples.
I don't know how to refer to specific examples...please help me..
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