In most of the body, the arteries carry oxygenated blood and the veins carry deoxygenated blood. The exception to this pattern is the heart. Explain how and why specific arteries and veins of the heart are different from the pattern seen in the rest of the body. PLZ ADD DESCRIPTION

The job of the heart is to pump blood to the lungs and to the body. There are two circuits, the pulmonary circuit and the systemic circuit. The pulmonary circuit is where the arteries carry deoxygenated blood and veins carry oxygenated blood which is different than the rest of the arteries and veins in the body.

The pulmonary circuit is where blood is pumped from the right ventricle of the heart through the pulmonary artery which carries deoxygenated blood and takes it to the lungs.

In the systemic circuit, the left ventricle pumps blood to the aorta (largest artery) which is then caries oxygenated blood away from heart to the body. And the blood must be rich in oxygen to get to be pumped to the whole body.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.