The greatest machine you will ever own is your body. It is more complicated than any computer. Your body is made up of hundreds of different parts. You probably know the names of the bits you can see, but there are many more hidden deep inside you. All bodies are made up of organs. Organs are made up of tissue, which is made of groups of similar cells. Cells are different depending on the organ. Come on now, lets all know about some of the most common Internal and External Organs of our Body.