ANATOMY

Detailed explanation-1: -Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart.

Detailed explanation-2: -Arteries are blood vessels that carry oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood that is low in oxygen from the body back to the heart for reoxygenation.

Detailed explanation-3: -Artery vs Vein. Arteries carry blood away from the heart, and veins carry blood towards the heart. With the exception of pulmonary blood vessels, arteries carry oxygenated blood and veins carry deoxygenated blood.

Detailed explanation-4: -Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava.

Detailed explanation-5: -Your pulmonary veins collect oxygen-rich blood from your lungs and carry it to your heart. From there, your heart sends the blood to all your other organs and tissues.