A Level Biology > Veins > Flashcards

Veins Flashcards

(7 cards)

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1
Q

What type of blood do veins carry and what is the exception?

A

Deoxygenated
Exceptions: pulmonary vein

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2
Q

What pressure and where to?

A

Low pressure back to the heart

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3
Q

Muscle layer?

A

Thin muscle layer

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4
Q

Elastic layer?

A

Thin elastic layer

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5
Q

Lumen size?

A

Large lumen

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6
Q

Valves?

A

Yes- to prevent the backflow of blood

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7
Q

Wall?

A

Thin wall

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