Does the vena cava connect arteries?

No, the vena cava does not connect arteries; it is a large vein that carries deoxygenated blood from the body back to the heart. There are two main vena cavae: the superior vena cava, which drains blood from the upper body, and the inferior vena cava, which drains blood from the lower body. Arteries, on the other hand, carry oxygenated blood away from the heart to the rest of the body.