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Valves are found in veins to check the backflow of blood flowing under 1) low pressure 2) high pressure 3) no pressure 4) very high pressure Please answer this question with suitable explaination

Valves are found in veins to check the backflow of blood flowing under
1) low pressure 
2) high pressure 
3) no pressure
4) very high pressure
Please answer this question with suitable explaination

Grade:12th pass

1 Answers

Simran Vinaik
askIITians Faculty 1231 Points
3 years ago
Ans is low pressure as blood tends to flow back down the pressure gradient- from high pressure to low pressure.

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