GROSS ANATOMY

Detailed explanation-1: -Deoxygenated blood from the lower half of the body enters the heart from the inferior vena cava while deoxygenated blood from the upper body is delivered to the heart via the superior vena cava . Both the superior vena cava and inferior vena cava empty blood into the right atrium.

Detailed explanation-2: -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. The oxygen-poor blood enters the right atrium (RA), or the right upper chamber of the heart.

Detailed explanation-3: -Adding oxygen to blood Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava. The blood enters the heart’s right atrium and is pumped to your right ventricle, which in turn pumps the blood to your 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.