cutybrain1725 cutybrain1725
  • 22-06-2017
  • Biology
contestada

In people who stand for long periods, blood tends to pool in the lower limbs and this may result in varicose veins. what causes the varicose veins?

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carressatee
carressatee carressatee
  • 22-06-2017
failure of the venous valves
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