Differentiate between an artery and a vein.
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Artery
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Vein
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1.
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Direction of Flow: It carries blood from heart to an organ.
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It brings blood from an organ towards the heart.
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2.
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Speed: Blood flow is rapid in artery.
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Blood flow is slow in vein.
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3.
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Jerks: Blood flows with jerks.
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Blood flows smoothly.
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4.
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Pressure: Blood flows under pressure.
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There is little pressure.
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5.
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Internal Valves: They are absent.
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Internal valves are present to prevent back flow.
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6.
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Wall: It is thick and elastic.
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It is comparatively thinner and little elastic.
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7.
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Lumen: Narrow.
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Wide.
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8.
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Type of Blood: Artery carries oxygenated blood except pulmonary arteries.
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Vein carries deoxygenated blood except pulmonary veins.
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9.
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Occurrence: It is deep seated.
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It is superficial.
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10.
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Collapsibility: Artery is not collapsible.
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Vein is collapsible.
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11.
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Blood After Death: It does not contain blood after death.
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Vein is full of blood even after death.
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