Question

usually veins carry deoxygenated blood except in one case specify​

Answer 1

Answer:

Veins include valves that aid the return of blood to the heart by preventing blood from flowing in the reverse direction. Transport blood towards the heart; Transport deoxygenated blood only (except in the case of the pulmonary vein).

Answer 2

The pulmonary vein carry oxygenated blood.

• Veins, arteries and capillaries are types of blood vessels in the body. Their main function is to transfer blood from one part of the body to another.
• Veins and arteries are actually not named by the type of blood they carry. Any blood vessel entering the heart is a vein, while a vessel taking blood away from the heart is an artery.
• Hence, the pulmonary artery which brings blood to the heart from the lungs actually carries oxygenated blood.