what is difference and similarities between pulmonary vein and artery

Dear student.

Please refer the link below:

https://www.meritnation.com/ask-answer/question/difference-between-pulmonary-vein-and-pulmonary-artery/life-processes/6204078 

Similarities: Both are blood vessels.

Regards.

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Pulmonary veins carries oxygenated blood towards the heart while pulmonary artery carries oxygenated blood away from the heart
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