Which post-natal vessels are unusual in that they are arteries carrying relatively deoxygenated blood?

1. Arteries are usually defined by carrying blood away from the heart, and most carry oxygenated blood. 2. The right ventricle pumps deoxygenated blood into the pulmonary trunk, which branches into the pulmonary arteries toward the lungs. 3. These pulmonary trunk arteries and branches are the only post-natal arteries in the body carrying relatively deoxygenated blood. 4. The aorta and coronary arteries carry oxygenated blood, and the pulmonary veins (not arteries) carry oxygenated blood back to the heart so none of these three matches the exception described. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 19 "The Cardiovascular System: The Heart", section 19.1, p. 827_