Veins have walls which allow bloodto flow only in one direction Arteri

1.	Veins have walls which allow bloodto flow only in one direction Arteriesdo not have walls yet, the bloodallow it to flow in ane direction. can youexplain why
Answer» Answer: BLOOD in ARTERIES is under preasure. hence it dosent REQUIRE VALVES. but in veins blood is under no preasure hence there may be a chance of back FLOW of blood therefore there is valves in veins

Veins have walls which allow bloodto flow only in one direction Arteriesdo not have walls yet, the bloodallow it to flow in ane direction. can youexplain why

Answer»

Answer:

BLOOD in ARTERIES is under preasure.

hence it dosent REQUIRE VALVES.

but in veins blood is under no preasure

hence there may be a chance of back FLOW of blood

therefore there is valves in veins

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Veins have walls which allow bloodto flow only in one direction Arteriesdo not have walls yet, the bloodallow it to flow in ane direction. can youexplain why​

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Veins have walls which allow bloodto flow only in one direction Arteriesdo not have walls yet, the bloodallow it to flow in ane direction. can youexplain why