an artery sends blood from heart to other organs and it has no valve how does it send blood to brain
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Answer:
Hey dear
in artery pressure is so high , because Heart pumps it .... so as the pressure is too high . the blood only flows uni directional in Artery.
in veins there are valves . in veins generally pressure is low , to prevent the back flow of blood due to gravity. they composed of valves
Explanation:
just simply keep in mind High pressure = No valves and it composed of pressure energy to reach Head and toes , which is given by heart
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