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Veins:

  • Blood vessel that carries blood back into the heart
  • Usually oxygen poor blood is carried within these blood vessels (except pulmonary vein)
  • They all have Valves to help prevent the back flow of blood
  • The walls are a lot less elasticated than arteries because they are aided by, skeletal muscle pumps, respiratory pumps, suction of the heart and pocket valves.

Venules:

  • Blood vessel takes deoxygenated blood from the the capillaries into the heart via veins
  • These venules have thin walls and have a small diameter.
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13y ago

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