EVERYDAY SCIENCE

Detailed explanation-1: -Your inferior vena cava, your body’s largest vein, carries oxygen-depleted blood back to your heart from the lower part of your body (below your diaphragm). Your superior vena cava, your second biggest vein, brings oxygen-poor blood from your upper body to your heart. Think of it like a bus line.

Detailed explanation-2: -From the inferior vena cava, the blood enters the right atrium, then passes through the foramen ovale into the left atrium; from there it moves into the left ventricle and out through the aorta, which pumps the oxygenated blood to the head and upper extremities.

Detailed explanation-3: -Both the superior vena cava and inferior vena cava empty blood into the right atrium. Blood flows through the tricuspid valve into the right ventricle. It then flows through the pulmonic valve into the pulmonary artery before being delivered to the lungs.

Detailed explanation-4: -The vena cava has two parts: the superior vena cava and the inferior vena cava. The superior vena cava carries blood from the head, neck, arms, and chest. The inferior vena cava carries blood from the legs, feet, and organs in the abdomen and pelvis.

Detailed explanation-5: -The superior vena cava and inferior vena cava are veins that return deoxygenated blood from circulation in the body and empty it into the right atrium.