More cards in this set

Card 16

Front

What is the role of the veins?

Back

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Card 17

Front

What is one adaptation of the veins?

Back

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Card 18

Front

Why do veins have a thin outer wall?

Back

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Card 19

Front

What is another adaptation of veins?

Back

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Card 20

Front

What else do veins have that arteries and capillaries dont?

Back

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Card 21

Front

Why do veins have valves?

Back

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