MRCP UK EXAMINATIONS

Detailed explanation-1: -Your superior vena cava, your second biggest vein, brings oxygen-poor blood from your upper body to your heart.

Detailed explanation-2: -The right and left brachiocephalic veins, also known as the innominate veins, join to form the superior vena cava posterior to the inferior border of the first right costal cartilage. These veins carry blood from the chest wall, esophagus, lungs, neck, and pericardium.

Detailed explanation-3: -The superior vena cava returns deoxygenated blood from the upper portion of the body including the head, neck, arms, and chest while the inferior vena cava returns blood to the heart from the lower portion of the body including the abdomen, pelvis, legs, and feet.

Detailed explanation-4: -The inferior vena cava is ultimately responsible for the transport of almost all venous blood (deoxygenated) from the abdomen and lower extremities back to the right side of the heart for oxygenation.