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victrous victrous
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6 years ago
The walls of veins are thinner than those of corresponding arteries, because ________.
A) veins contain a lower proportion of smooth muscle fibers
B) of only arteries can perform vasoconstriction
C) veins contain a greater proportion of elastic fibers and collagen
D) blood pressure is higher in veins
E) the lumen of veins is much smaller than the lumen of arteries of similar diameter
Textbook 
Human Anatomy

Human Anatomy


Edition: 9th
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Human Anatomy, 9/E
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JacobFJacobF
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6 years ago
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victrous Author
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6 years ago
Good timing, thanks!
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Thank you, thank you, thank you!
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2 hours ago
This site is awesome
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