Chapter 5 The Saintly Touch Science says that the body system is powered with energy particles which contain various vitamins. Vitamin A for eyes, Proteins for hair growth and Vitamin D for bones and teeth . The pancreas converts the food we eat into fuel for the functioning of the cells in the body .Not only that… it labelled the various parts in the body as heart, kidney, gallbladder ,small intestine, large intestine, glands, the spinal Cord system, joint bones, fingers, nails, nerves like that. The length of the blood vessel itself is more than 60,000 miles.