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 duration of a cremation process usually depends on certain factors. They are: 1  weight or size of the body. 2  percentage of body fat to lean muscle mass. 3  the performance of cremation equipments used. 4  operating temperature of the cremation chamber. 5  the type of cremation container or casket in which the body is placed.n an average, it takes about one to three hours to cremate a human body, thereby reducing it to 3-7 pounds of cremains. The cremation remains are usually pasty white in color. These remains are transferred in a cremation urn and given to the relative or representative of the deceased.