Question

what are the first blood vessels to branch from the aorta as it leaves the heart?
a pulmonary arteries
b pulmonary veins
c coronary arteries
d coronary veins

Explanation:

The aorta is the main artery leaving the heart. The coronary arteries are the first branches from the aorta. They supply blood to the heart muscle itself. Pulmonary arteries carry blood from the heart to the lungs (not branching from the aorta). Pulmonary veins bring blood back to the heart from the lungs (not branching from the aorta). Coronary veins carry de - oxygenated blood from the heart muscle (not the first branches from the aorta).

Answer:

C. Coronary arteries