What is the Xvid codec: The Xvid Codec (formerly capitalized differently: XviD) is a video encoding and decoding (playback) codec designed to compete with the popular DivX codec.
The heart is located in the chest between the lungs behind the sternum and above the diaphragm. It is surrounded by the pericardium. Its size is about that of a fist, and its weight is about 250-300 g.he heart is located in the chest between the lungs behind the sternum and above the diaphragm. It is surrounded by the pericardium. Its size is about that of a fist, and its weight is about 250-300 g.
The heart is located in the chest cavity. It is surrounded by a covering called the pericardium. The heart itself is divided into four chambers, called the right and left atria and the right and left ventricles. The heart is connected to the rest of the body by means of VEINS which return to the lungs and the ARTERIES which pump blood to the body.