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Why do arteries have thick walls? Why do arteries have elastic walls?

Answer 1

Thick walls of arteries help them to resist the pressure of flow of blood in them. Arteries are elastic so as to produce enough pressure to push the blood and help it flow

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Answer 2

Grayson Anderson

In addition to having elastic walls that allow them to expand and contract, arteries also have thick walls that enable them to withstand the high pressure of blood pumped by the heart. This helps to maintain constant blood flow and pressure throughout the cardiac cycle.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.