Question

what is the major difference between pulmonary veins and most other veins? a. they have a corresponding artery. b. they have a thin, smooth muscular layer. c. they have internal valves but no elastic tissue. d. they carry oxygenated blood to the heart.

Answer 1

D. They carry oxygenated blood to the lungs to be pumped to the heart then around the body. Pulmonary has to do with the lungs