Capillaries are minute blood vessels that join onto the arterioles. They are one cell thick and are exchange points where the nutrients (oxygen and glycogen) cross into the tissue cells (muscles) from the arterioles.
An average human body takes from two to three hours to burn completely and will produce an average of 3 to 9 pounds (1.4 to 4.1 kilograms) of ash.The amount of ash depends usually on the bone structure of the person and not so much their weight [source: Ellenberg ].n average human body takes from two to three hours to burn completely and will produce an average of 3 to 9 pounds (1.4 to 4.1 kilograms) of ash.
Cremation is the process by which a body is exposed to extreme heat, usually 1800 - 2000 degrees Fahrenheit for two hours or more. Through this process the body is reduced to its basic elements, which are referred to as the cremated body or cremated remains.Cremation occurs at a crematorium in a special kind of furnace called a cremation chamber or retort. casket is not required for a cremation to take place. All that is required is an alternative container in most states. The construction can be made of wood or cardboard, which is cremated with the body. In some states, no container is required.