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Arteries Component Veins

Reason Feature Feature Reason

Maintain high pressure Small lumen Lumen Larger Ease flow of blood



Withstand high Thick, lots of collagen Wall thickness & Thinner Lower pressure
pressure collagen


Stretch and recoil Lots Elastic fibres/tissues Less Doesn't need to
when heart pumps stretch and recoil




Wall stretch…

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Can unfold when Endothelium is folded Other Valves Pump blood, to stop
artery stretches back flow

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