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GCSE Biology 2020-2022 OCR Gateway

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Question:

How are Veins made and adapted?

Author: go kys



Answer:

Veins are formed from the joint up Venules. Blood pressure here is lower so the walls are not as thick. They do however have a larger lumen to help the blood flow. They also have valves, to ensure the direction of the blood to the heart.


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go kys
go kys