Biology, asked by paarthsarathi1501, 1 day ago

why do veins haves values in them?​

Answers

Answered by vidwathspatashala
2

Answer:

veins contain valves to ensure the blood flows in only one direction.

Explanation:

Carry blood to the heart (always deoxygenated apart from the pulmonary vein which goes from the lungs to the heart). ... Have valves to prevent blood flowing backwards.

Answered by sumit83610
0

Answer:

AS THE BLOOD FLOWS UNDER LOW PRESSURE VEINS HAVE VALVES TO PREVENT BACKFLOW OF BLOOD

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