In humans, the posterior vena cava is called the ________.

A) superior vena cava
B) jugular vein
C) inferior vena cava
D) pulmonary vein

The posterior vena cava in humans is called the inferior vena cava. The superior vena cava drains blood from the upper part of the body into the heart, while the inferior vena cava drains blood from the lower part of the body into the heart. The jugular vein drains blood from the head and neck, while the pulmonary vein carries oxygenated blood from the lungs to the heart.