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Artery
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Vein
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1.
Direction of blood flow is from
heart to other body parts
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Direction of blood flow is from body parts to heart
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2.
Carries oxygenated (pure) blood
(except in pulmonary artery)
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Carries deoxygenated (impure) blood (except in pulmonary
vein)
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3.
Blood flows in high pressure and
speed
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Blood flows in low pressure and speed
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4.
Thicker and more elastic wall
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Thinner and less elastic
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5.
Narrow lumen
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Wide lumen
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6.
Deep seated in position
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Generally found superficial in position
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7.
Valves are absent
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Present
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8.
Tunica interna (innermost layer)
is more developed and elastic. Elongated endothelial cells are present in
this layer
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Tunica interna is less developed and elastic. Endothelial
cells are less flat
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9.
Tunica media (middle layer) is
more muscular with many elastic fibres
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Tunica media is less muscular with few elastic fibres
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10.
Tunica externa (outermost layer)
is less developed so less strong
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Tunica externa is more developed so more strong
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11.
After death, arteries become empty
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After death, veins will contain blood
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