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.
The time required for cremation varies from body to body, and, in modern furnaces, the process may be as fast as one hour per 50 kg (100 lb) of body weight. A cremator is not designed to cremate more than one human body at a time; cremation of multiple bodies is illegal in the United States and many other countries.n the United Kingdom, the body is not removed from the coffin and is not placed into a container as described above. The body is cremated with the coffin, which is why all British coffins that are to be used for cremation must be combustible.