By the end of this section you should be able to:
Explain the concept of digestion
Identify parts of human digestive system and their adaptive features.
Compare the human digestive system with that of the other mammals (ruminants)
Explain the digestion process in humans
Outline the end products of digestion.
What is digestion?
Most of food materials are either solid or semi-solid. Food material cannot be used by the body until it has been absorbed.