Answers

2015-08-05T20:26:54+05:30
Since the blood from systemic aorta pumps blood into arteries with a huge pressure and force to withstand that pressure the walls are arteries are strong
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2015-08-05T21:18:20+05:30
As our heart works against the force of gravity , blood flows through arteries with high pressure . so to prevent injury arteries are strong , elastic and superficial
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