PATHOLOGY

Detailed explanation-1: -Superior vena cava: This large vein delivers oxygen-poor blood from your upper body into your heart’s right atrium.

Detailed explanation-2: -jugular vein, any of several veins of the neck that drain blood from the brain, face, and neck, returning it to the heart via the superior vena cava. The main vessels are the external jugular vein and the interior jugular vein.

Detailed explanation-3: -Your superior vena cava and inferior vena cava have the important function of carrying oxygen-poor blood to your heart’s right atrium, where it moves into your right ventricle and then to your lungs (through your pulmonary artery) to trade in carbon dioxide for oxygen.