A pattern, apart from the term's use to mean template, is a discernible regularity in the world or in a manmade design. As such, the elements of a pattern repeat in a predictable manner. A geometric pattern is a kind of pattern formed of geometric shapes and typically repeated like a wallpaper.
The vena cava is the major vein that returns blood to the right atrium of the heart. The vena cava superior returns blood from the head, neck, upper extremities, and chest. The vena cava inferior returns blood from the lower extremities, the pelvis, and the abdomen.
So, the biggest vein from the body going back into the heart is probably the last one â¦ except that there are two âlast onesâ, the superior and inferior vena cavae. However, because there is more blood flow from the lower parts of the body, Iâd suppose that its going to be the inferior vena cava.