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OpenStudy (anonymous):
why are arteries thicker than veins...both are under equal pressure near heart right?
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OpenStudy (anonymous):
no they are not. arterial pressure is around 120/80 (systole diastole) . venous pressure is 0-5, even near the heart. the valves in the heart - and specfically the tricuspid between the right atrium and right room enable the buildup of pressure when the chamber contracts
OpenStudy (blues):
What Ttom said about the pressure difference. And arteries are thicker than veins because they need to withstand the higher blood pressure.
OpenStudy (anonymous):
cuz the blood flowing through them is at higher pressure there fore they need tobe thicker to withstand more pressure.
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