Question

hello !

give reason --- pulmonary arteries and pulmonary veinsare the exceptions to arteries and veins

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Answer 1

The main reason to say that pulmonary artery and pulmonary veins are exceptions to arteries and veins beacuse they do opposite works which thier name suggests.

We know that arteries have main function to carry oxygenated blood, but pulmonary actually carries deoxygentaed blood from heart to lungs.

Similarly, veins we know that they works to carry deoxygentaed blood though body, but this pulmonary vein here carry oxygen rich blood from lungs to the heart.