MICROANATOMY

Detailed explanation-1: -Your pulmonary arteries carry blood from your heart to your lungs. They’re the only arteries in your body that carry oxygen-poor (deoxygenated) blood. Your main pulmonary artery (pulmonary trunk) leaves your right ventricle at your pulmonary valve.

Detailed explanation-2: -Pulmonary artery arises from right ventricle of heart. Right ventricle in turn receives blood from right atrium. Right atrium receives deoxygenated blood from all over the body through superior vena cava, inferior vena cava and coronary sinus. So, pulmonary artery receives deoxygenated blood from right side of heart.

Detailed explanation-3: -The pulmonary arteries and the pulmonary veins are the vessels of the pulmonary circulation; which means they are responsible for carrying the oxygenated blood to the heart from the lungs and carrying the deoxygenated blood from the heart to the lungs.

Detailed explanation-4: -Vena cava-One of the two great veins that carries deoxygenated blood from the body to the right atrium of the heart.